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Mathematics
Joe Marshall
22 February, 12:25
Find the greatest comman factor of 15 and 20
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Vaughn Conley
22 February, 12:57
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The greatest common factor of 15 and 20 is 5
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Brayan Ward
22 February, 15:29
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GCF (15,20) = 5
Step-by-step explanation:
Prime Factorization of 15
Prime factors of 15 are 3, 5. Prime factorization of 15 in exponential form is:
15 = 31 * 51
Prime Factorization of 20
Prime factors of 20 are 2, 5. Prime factorization of 20 in exponential form is:
20 = 22 * 51
Factors of 15
List of positive integer factors of 15 that divides 15 without a remainder.
1, 3, 5
Factors of 20
List of positive integer factors of 20 that divides 15 without a remainder.
1, 2, 4, 5, 10
Greatest Common Factor
We found the factors and prime factorization of 15 and 20. The biggest common factor number is the GCF number.
So the greatest common factor 15 and 20 is 5.
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