What is the Greatest Common Factor of 357 and 372?
Greatest common factor (GCF) of 357 and 372 is 3.
GCF(357,372) = 3
We will now calculate the prime factors of 357 and 372, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 357 and 372.
How to find the GCF of 357 and 372?
We will first find the prime factorization of 357 and 372. After we will calculate the factors of 357 and 372 and find the biggest common factor number .
Step-1: Prime Factorization of 357
Prime factors of 357 are 3, 7, 17. Prime factorization of 357 in exponential form is:
357 = 31 × 71 × 171
Step-2: Prime Factorization of 372
Prime factors of 372 are 2, 3, 31. Prime factorization of 372 in exponential form is:
372 = 22 × 31 × 311
Step-3: Factors of 357
List of positive integer factors of 357 that divides 357 without a remainder.
1, 3, 7, 17, 21, 51, 119
Step-4: Factors of 372
List of positive integer factors of 372 that divides 357 without a remainder.
1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 357 and 372. The biggest common factor number is the GCF number.
So the greatest common factor 357 and 372 is 3.
Also check out the Least Common Multiple of 357 and 372
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