What is the Greatest Common Factor of 687 and 696?
Greatest common factor (GCF) of 687 and 696 is 3.
GCF(687,696) = 3
We will now calculate the prime factors of 687 and 696, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 687 and 696.
How to find the GCF of 687 and 696?
We will first find the prime factorization of 687 and 696. After we will calculate the factors of 687 and 696 and find the biggest common factor number .
Step-1: Prime Factorization of 687
Prime factors of 687 are 3, 229. Prime factorization of 687 in exponential form is:
687 = 31 × 2291
Step-2: Prime Factorization of 696
Prime factors of 696 are 2, 3, 29. Prime factorization of 696 in exponential form is:
696 = 23 × 31 × 291
Step-3: Factors of 687
List of positive integer factors of 687 that divides 687 without a remainder.
1, 3, 229
Step-4: Factors of 696
List of positive integer factors of 696 that divides 687 without a remainder.
1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 87, 116, 174, 232, 348
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 687 and 696. The biggest common factor number is the GCF number.
So the greatest common factor 687 and 696 is 3.
Also check out the Least Common Multiple of 687 and 696
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