What is the Greatest Common Factor of 665 and 677?
Greatest common factor (GCF) of 665 and 677 is 1.
GCF(665,677) = 1
We will now calculate the prime factors of 665 and 677, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 665 and 677.
How to find the GCF of 665 and 677?
We will first find the prime factorization of 665 and 677. After we will calculate the factors of 665 and 677 and find the biggest common factor number .
Step-1: Prime Factorization of 665
Prime factors of 665 are 5, 7, 19. Prime factorization of 665 in exponential form is:
665 = 51 × 71 × 191
Step-2: Prime Factorization of 677
Prime factors of 677 are 677. Prime factorization of 677 in exponential form is:
677 = 6771
Step-3: Factors of 665
List of positive integer factors of 665 that divides 665 without a remainder.
1, 5, 7, 19, 35, 95, 133
Step-4: Factors of 677
List of positive integer factors of 677 that divides 665 without a remainder.
1
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 665 and 677. The biggest common factor number is the GCF number.
So the greatest common factor 665 and 677 is 1.
Also check out the Least Common Multiple of 665 and 677
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