Khan/khan-exercises — Issue #14011: Prime factorization - Prime Factorization 
Author: KhanBugz
Created: 2012-02-16 20:18:01+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

69's prime factorization could be either 3x23 like you have or 3x3x11, but the fact that 3x3x11 is wrong and not able to be submitted is stupid.

[prime_factorization.html?seed=45&problem=composite](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/prime_factorization.html?seed=45&problem=composite&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/prime_factorization.html?seed=45&problem=composite&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%223x33%5C%22%22%2C11%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x11%5C%22%22%2C8%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x11%5C%22%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x11%5C%22%22%2C10%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x11%5C%22%22%2C20%5D%5D)

["3x33","3x3x11","3x3x11","3x3x3x11","3x3x11"]

Mozilla/5.0 (Windows NT 6.1; rv:6.0) Gecko/20110825 Firefox/6.0

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