What is the Greatest Common Factor of 636 and 654?
Greatest common factor (GCF) of 636 and 654 is 6.
GCF(636,654) = 6
We will now calculate the prime factors of 636 and 654, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 636 and 654.
How to find the GCF of 636 and 654?
We will first find the prime factorization of 636 and 654. After we will calculate the factors of 636 and 654 and find the biggest common factor number .
Step-1: Prime Factorization of 636
Prime factors of 636 are 2, 3, 53. Prime factorization of 636 in exponential form is:
636 = 22 × 31 × 531
Step-2: Prime Factorization of 654
Prime factors of 654 are 2, 3, 109. Prime factorization of 654 in exponential form is:
654 = 21 × 31 × 1091
Step-3: Factors of 636
List of positive integer factors of 636 that divides 636 without a remainder.
1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318
Step-4: Factors of 654
List of positive integer factors of 654 that divides 636 without a remainder.
1, 2, 3, 6, 109, 218, 327
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 636 and 654. The biggest common factor number is the GCF number.
So the greatest common factor 636 and 654 is 6.
Also check out the Least Common Multiple of 636 and 654
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