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OpenStudy (anonymous):
what is the GCF of 20 and 30?
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OpenStudy (alexandervonhumboldt2):
20=2*2*5 30=2*3*5
OpenStudy (alexandervonhumboldt2):
`The greatest common factor, or GCF, is the greatest factor that divides two numbers. To find the GCF of two numbers: List the prime factors of each number. Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1.`
OpenStudy (anonymous):
its 10
OpenStudy (anonymous):
thank you i have another question what is the LCM 15 and 60
OpenStudy (anonymous):
umm 1 sec
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OpenStudy (anonymous):
the answer is 60
OpenStudy (anonymous):
did you get it right?
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