What is the Greatest Common Factor of 15357 and 15372?

Greatest common factor (GCF) of 15357 and 15372 is 3.

GCF(15357,15372) = 3

We will now calculate the prime factors of 15357 and 15372, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15357 and 15372.

How to find the GCF of 15357 and 15372?

We will first find the prime factorization of 15357 and 15372. After we will calculate the factors of 15357 and 15372 and find the biggest common factor number .

Step-1: Prime Factorization of 15357

Prime factors of 15357 are 3, 5119. Prime factorization of 15357 in exponential form is:

15357 = 3¹ × 5119¹

Step-2: Prime Factorization of 15372

Prime factors of 15372 are 2, 3, 7, 61. Prime factorization of 15372 in exponential form is:

15372 = 2² × 3² × 7¹ × 61¹

Step-3: Factors of 15357

List of positive integer factors of 15357 that divides 15357 without a remainder.

1, 3, 5119

Step-4: Factors of 15372

List of positive integer factors of 15372 that divides 15357 without a remainder.

1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 61, 63, 84, 122, 126, 183, 244, 252, 366, 427, 549, 732, 854, 1098, 1281, 1708, 2196, 2562, 3843, 5124, 7686

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15357 and 15372. The biggest common factor number is the GCF number.
So the greatest common factor 15357 and 15372 is 3.

Also check out the Least Common Multiple of 15357 and 15372