Echad Veshishim Umeya - mi yodeya?

Question

Who knows one hundred sixty-one?

Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will:

Gershon Gold · Accepted Answer · 2011-01-06 18:41:12Z

up vote 5 down vote accepted

On average it takes 161 Jewish months to become Bar Mitzva. 13 x 12 = 156 + 5 extra Adars.

answered Jan 6 '11 at 18:41

Gershon Gold
58k154127

	That'd be, I suppose, both the mode and the ceiling of the average (mean), but obviously not the exact average (up arrow from me anyway :-) ). – msh210♦ Jan 7 '11 at 5:23
	@msh210 We deal in integers around here. This isn't the first time someone's shoehorned an answer into this series using floor or ceiling. How many days, for example, are in a month? – Isaac Moses Jan 7 '11 at 19:43
	@Gershon, nice find! – Isaac Moses Jan 7 '11 at 19:43
	@R'IM, I wasn't disputing or even frowning upon the answer (it was a nice find), but merely pointing out the math in case someone didn't realize. – msh210♦ Jan 7 '11 at 19:59

msh210 · Answer 2 · 2011-01-06 20:26:25Z

up vote 1 down vote

R'u was 161 was Avraham was born. (Source: Rashi to B'reshis 19:20.)

answered Jan 6 '11 at 20:26

msh210♦
26.3k230114