questions about numbers

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4
votes
1answer
372 views

Tzitzit tying: the real way

1)There are two authentic ways to tie the Sisit (Tzitzis) that have sources. Maran writes to make 7-9-11-13. First question: why does he write this is he then says Gimtarya Hashem is One, when in fact ...
4
votes
3answers
91 views

Shnayim Umeya Va-elef - mi yodeya?

Who knows eleven hundred two? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go on to ...
4
votes
13answers
145 views

Chamisha Asar - mi yodeya?

Who knows fifteen? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
3
votes
1answer
89 views

Source for # times chai?

I often see donation requests with amounts in multiples of $18. I would like to know the source for giving charity of the numeric value of the Hebrew word chai (18) and its multiples.
3
votes
0answers
103 views

How many approaches to Torah are there?

Our sages tell us that there are שבעים פנים לתורה (Bamidbar Rabbah). Does this mean that every word, or verse, or some unit, has 70 interpretations, and there are theoretically billions of ...
3
votes
2answers
112 views

What is the problem with writing שט as a number?

In Hebrew, numbers are represented by letters. When these letters spell out something unpleasant or undesirable, they are moved around. An example is שד which means “demon” becomes דש in the Mishna ...
3
votes
0answers
88 views

One Challah or Two?

If two challahs are braided and baked together on one pan, and before they are completely baked, they have stuck together, do I have one challah or two? I.e. can I separate them and still have two ...
3
votes
4answers
78 views

Shiv'a Ushlosh Meyot - mi yodeya?

Who knows three hundred and seven? ?שבעה ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 307. Check out ...
3
votes
3answers
61 views

Chamisha Ushlosh Meyot - mi yodeya?

Who knows three hundred and five? ?חמישה ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 305. Don't be led ...
3
votes
1answer
131 views

What do Chazal mean when they say that when Moshiach comes there will be another note added to the octave making a total of 8 notes?

Related: What were Chazal referring to when they said there were 7 notes in a musical octave? There is a well known Medrash (anyone help with the source?) [I think on the Posuk 'Lamnatzeich Al ...
3
votes
5answers
64 views

Shiv'a Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-seven? ?שבעה ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 287. There ...
3
votes
3answers
61 views

12 hours to the day, 12 hours to the night

Why is a day and night divided into 12 hours? Why not 10 hours? What is the significance of 12?
3
votes
9answers
170 views

Sheloshim - mi yodeya?

Who knows thirty? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
3
votes
10answers
131 views

Shnayim Ve'esrim - mi yodeya?

Who knows twenty-two? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
3
votes
10answers
137 views

Shelosha Asar - mi yodeya?

Who knows thirteen? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number. (What, you ...
2
votes
1answer
90 views

420 Noachide Commandments?

I know there are seven specific commandments to noachides but recently I was talking to a Rabbi who told me actually noachides have 420 commandments and the Jewish nation has 613. Can anyone point me ...
2
votes
4answers
71 views

Esrim Ushlosh Meyot - mi yodeya?

Who knows three hundred twenty? ?עשרים ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 320. Let the lips of ...
2
votes
1answer
59 views

Why was Ephraim's count not affected by leaving early?

According to the medrash pirkei deRebbi Eliezer (48) 200,000 Ephraimites left Egypt many years before Moshe took the Jews out and were killed. There are other midrashim and a gemarah which quote ...
2
votes
0answers
118 views

Relations twice as segulah for boy — What about zugos?

I had asked what is the source for the segulah of having relations twice in order to have a boy. I first asked this in order to obtain a source to better ask this question. The Gemorah says in Niddah ...
2
votes
0answers
145 views

What were Chazal referring to when they said there were 7 notes in a musical octave?

Related: What do Chazal mean when they say that when Moshiach comes there will be another note added to the octave making a total of 8 notes? There is a well known Medrash (anyone help with the ...
2
votes
3answers
85 views

Echad ushlosh meyot - mi yodeya?

Who knows three hundred and one? ?אחד ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 301. Anyone who posts ...
2
votes
1answer
47 views

Shiv'a Vetish'im Umatayim - mi yodeya?

Who knows two hundred ninety-seven? ?שבעה ותשעים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 297. I'm ...
2
votes
3answers
60 views

Chamisha Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-five? ?חמישה ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 285. The best ...
2
votes
3answers
60 views

Arba'a Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-four? ?ארבעה ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 284. I don't ...
2
votes
4answers
70 views

Shnayim Veshiv'im Umatayim - mi yodeya?

Who knows two hundred seventy-two? Please cite/link your sources, if possible. At some undetermined point in the future, at least a day from now, I will: Vote up all interesting, relevant answers. ...
2
votes
5answers
159 views

Shisha Ve'arba'im Umatayim - mi yodeya?

Who knows two hundred forty-six? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all answers I consider relevant and interesting. ...
2
votes
4answers
65 views

Arba'a Ve'arba'im Umatayim - mi yodeya?

Who knows two hundred forty-four? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go ...
2
votes
15answers
69 views

Matayim - mi yodeya?

Who knows two hundred? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go on to the ...
2
votes
4answers
81 views

Chamisha Veshishim Umeya - mi yodeya?

Who knows one hundred sixty-five? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go ...
2
votes
7answers
81 views

Esrim Umeya - mi yodeya?

Who knows one hundred twenty? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go on to ...
2
votes
4answers
52 views

Shisha Ushmonim - mi yodeya?

Who knows eighty-six? Please cite/link your sources, if possible. At some point in the next few days, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
2
votes
2answers
33 views

Chamisha Veshiv'im - mi yodeya?

Who knows seventy-five? Please cite/link your sources, if possible. At some point in the next few days, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
2
votes
12answers
118 views

Shemona - mi yodeya?

Who knows eight? Please cite/link your sources, if possible. In about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
1
vote
1answer
55 views

Why do we abbreviate the Jewish year to the hundreds column?

The current Jewish year is 5774 however it is popularly abbreviated as 774 - תשע״ד. I would like to know why this abbreviation was adopted. I realize that to write out the number 5,000 would require ...
1
vote
3answers
88 views

why do the festivals of sukkot and pesach last seven days

What is the reason for the festivals of sukkot and pesach lasting seven days. Is there a significance/reason to the number seven here?
1
vote
0answers
92 views

Should a parent bless a child resting one hand or both?

When a parent gives the traditional blessing usually done on Shabbat evening should the parent place one hand on the head of the child or two?
1
vote
3answers
251 views

How do we calculate 100 shofar blasts?

We are obligated to hear 100 shofar blasts on Rosh Hashona [source?] - how are those blasts calculated? Do we actually hear 100 or are there extra?
1
vote
6answers
73 views

Shisha Asar Umatayim - mi yodeya?

Who knows two hundred sixteen? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go on ...
1
vote
4answers
53 views

Asara Umatayim - mi yodeya?

Who knows two hundred ten? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go on to ...
1
vote
4answers
43 views

Shelosha Vetish'im Umeya - mi yodeya?

Who knows one hundred ninety-three? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go ...
1
vote
3answers
45 views

Arba'a Veshishim Umeya - mi yodeya?

Who knows one hundred sixty-four? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go ...
1
vote
3answers
37 views

Shiv'a Ve'arba'im Umeya - mi yodeya?

Who knows one hundred forty-seven? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go ...
1
vote
2answers
148 views

Shelosha Veshishim - mi yodeya?

Who knows sixty-three? Please cite/link your sources, if possible. At some point in the next few days, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
1
vote
6answers
112 views

Shiv'a Ve'esrim - mi yodeya?

Who knows twenty-seven? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
0
votes
0answers
29 views

Yosef's 10% in Israel

Yosef lived in the Holy Land from age six (B'reshis 30:25, 31:41) until age seventeen (Rashi to 37:34). This was eleven years, or 10% of his 110-year lifespan (50:26). Does anyone comment on this ...
0
votes
0answers
96 views

Is two hundred and ten a name of God?

Is there a name of God (derived through gematria, kabbalah or otherwise) associated with the number 210?