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OpenStudy (anonymous):
FIND THE PRIME FACTORIZATION OF 245 USING EXPONENTS WHEN REPEATED FACTORS APPEAR
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OpenStudy (anonymous):
5*7*7?
OpenStudy (anonymous):
One approach is to start dividing by primes: 2,3,5,7,11,13,... Should not need to continue testing anything bigger than sqrt(245) = 15.6
zepdrix (zepdrix):
Yes your factorization looks correct Ruby. Each prime factor should only appear once though. What's another way we could write 7*7 ?
OpenStudy (anonymous):
Well done. They ask for exponents when repeated factors occur, so 7*7= ?.
OpenStudy (anonymous):
7^2
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