Khan/khan-exercises — Issue #10539: Prime factorization - Prime Factorization
Author: KhanBugz
Created: 2012-01-06 15:35:28+00:00
State: open
Labels: firefox, wrong-or-unclear

Prime Factorization of 87 is definitely 3x3x3x3. I've checked like 5 times.

[prime_factorization.html?seed=51&problem=composite](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/prime_factorization.html?seed=51&problem=composite&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/prime_factorization.html?seed=51&problem=composite&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%223%5C%22%22%2C60%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3x%5C%22%22%2C6%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C5%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C0%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C0%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C0%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C0%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C0%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C0%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%223x3x3x3%5C%22%22%2C0%5D%5D)

["3","3x3x3x3x","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3","3x3x3x3"]

Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20100101 Firefox/8.0 Iceweasel/8.0

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