Straight Dope Message Board

Divisibility by Seven

Factual Questions

Lance_Turbo February 1, 2011, 7:41pm 21

Mentioned in post #7.

Topic		Replies	Views	Activity
Checking a number is divisible by three. Factual Questions	16	1738	June 8, 2004
Proof for the divide-by-three rule and other rules of thumb Factual Questions	22	1957	August 10, 2003
Test for Divisibility by 7 Factual Questions	14	1240	March 25, 2004
Calling all Math Geeks!! - Proof for the Divisibility Rule of 11 Factual Questions	14	2949	August 25, 2006
Multiplying by Nine In My Humble Opinion	37	2165	September 11, 2008