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Who knows Fibonacci numbers?

מספר פיבונצ'י - מי יודע

From Wikipedia:

In mathematics, the Fibonacci numbers are the numbers in the following integer sequence, called the Fibonacci sequence, and characterized by the fact that every number after the first two is the sum of the two preceding ones. Such as:

1,1,2,3,5,8,13,21,34...

The first two numbers are defined as 1 and 1.

In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about Fibonacci numbers. I was able to find something interesting about the first two numbers, but nothing Jewishly related regarding the number sequence. Maybe you can add things up and come up with something ;-)

Please, no lazy gematria about these numbers. I'm looking for something clever.


This question is Purim Torah and is not intended to be taken completely seriously. See the Purim Torah policy.

closed as off-topic by LN6595, Double AA Mar 4 '18 at 0:30

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Purim Torah questions are on-topic only once a year, and will be closed after Purim. For details, see: Purim Torah policy" – Double AA
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  • Hey, don't take @IsaacMoses' job! ;) +1 for the good post. – ezra Feb 19 '18 at 23:01
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    I'm not sure this qualifies as Purim Torah under the policy – Double AA Feb 19 '18 at 23:30
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    @DoubleAA We have one last year regarding irrational numbers. How is this different? – DanF Feb 20 '18 at 0:08
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    Hmm let's see - the first "1" is Hashem, He made the next "1"Adam, then Eve made it "2"(or maybe their two children), after the murder but before Seth they were down to only "3", Cain left, so Seth and his wife and Enosh made it a total of "5". Add back the distant Cain and his wife and Enoch and there's "8"(phooey, there's gotta be a better way!), five more generations until Methuselah, that's a "13"...running out of stuff here....Enoch begets Methuselah in Chapter 5, Verse "21"...yeah, enough.... – Gary Feb 20 '18 at 3:10
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    @sah no. As I understand it this isn't a question about numbers which are Fibonacci numbers but rather about the set of them. So a fact about the number 8 won't work here, whereas a fact about the number e will work at the other question. – Double AA Feb 26 '18 at 1:40
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From Midrash Kepler 15:71:

How was the עגל הזהב created? First, Aaron took 3 earrings, and melted them into 2 pieces; then he took [enough to have collected] 5 earrings, and melted them into 3 pieces; then he took [enough to have collected] 8 earrings, and melted them into 5 pieces; and so he continued until there were no more earrings to collect.

The traditional commentators are puzzled by this midrash. Of course, it's clear that if there had been an unlimited supply of earrings, this would eventually produce זהב. But there was only a finite supply of earrings!

Finally, the Taz answered that the finiteness of the earrings is why it's called the עגל הזהב: it was close enough to round off.

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