What is the Greatest Common Factor of 15740 and 15756?

Greatest common factor (GCF) of 15740 and 15756 is 4.

GCF(15740,15756) = 4

We will now calculate the prime factors of 15740 and 15756, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15740 and 15756.

How to find the GCF of 15740 and 15756?

We will first find the prime factorization of 15740 and 15756. After we will calculate the factors of 15740 and 15756 and find the biggest common factor number .

Step-1: Prime Factorization of 15740

Prime factors of 15740 are 2, 5, 787. Prime factorization of 15740 in exponential form is:

15740 = 2² × 5¹ × 787¹

Step-2: Prime Factorization of 15756

Prime factors of 15756 are 2, 3, 13, 101. Prime factorization of 15756 in exponential form is:

15756 = 2² × 3¹ × 13¹ × 101¹

Step-3: Factors of 15740

List of positive integer factors of 15740 that divides 15740 without a remainder.

1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 7870

Step-4: Factors of 15756

List of positive integer factors of 15756 that divides 15740 without a remainder.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 101, 156, 202, 303, 404, 606, 1212, 1313, 2626, 3939, 5252, 7878

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15740 and 15756. The biggest common factor number is the GCF number.
So the greatest common factor 15740 and 15756 is 4.

Also check out the Least Common Multiple of 15740 and 15756