What is the Greatest Common Factor of 657 and 675?
Greatest common factor (GCF) of 657 and 675 is 9.
GCF(657,675) = 9
We will now calculate the prime factors of 657 and 675, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 657 and 675.
How to find the GCF of 657 and 675?
We will first find the prime factorization of 657 and 675. After we will calculate the factors of 657 and 675 and find the biggest common factor number .
Step-1: Prime Factorization of 657
Prime factors of 657 are 3, 73. Prime factorization of 657 in exponential form is:
657 = 32 × 731
Step-2: Prime Factorization of 675
Prime factors of 675 are 3, 5. Prime factorization of 675 in exponential form is:
675 = 33 × 52
Step-3: Factors of 657
List of positive integer factors of 657 that divides 657 without a remainder.
1, 3, 9, 73, 219
Step-4: Factors of 675
List of positive integer factors of 675 that divides 657 without a remainder.
1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 657 and 675. The biggest common factor number is the GCF number.
So the greatest common factor 657 and 675 is 9.
Also check out the Least Common Multiple of 657 and 675
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