What is the Greatest Common Factor of 675 and 681?
Greatest common factor (GCF) of 675 and 681 is 3.
GCF(675,681) = 3
We will now calculate the prime factors of 675 and 681, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 675 and 681.
How to find the GCF of 675 and 681?
We will first find the prime factorization of 675 and 681. After we will calculate the factors of 675 and 681 and find the biggest common factor number .
Step-1: Prime Factorization of 675
Prime factors of 675 are 3, 5. Prime factorization of 675 in exponential form is:
675 = 33 × 52
Step-2: Prime Factorization of 681
Prime factors of 681 are 3, 227. Prime factorization of 681 in exponential form is:
681 = 31 × 2271
Step-3: Factors of 675
List of positive integer factors of 675 that divides 675 without a remainder.
1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225
Step-4: Factors of 681
List of positive integer factors of 681 that divides 675 without a remainder.
1, 3, 227
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 675 and 681. The biggest common factor number is the GCF number.
So the greatest common factor 675 and 681 is 3.
Also check out the Least Common Multiple of 675 and 681
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