What is the Greatest Common Factor of 3920 and 3927?

Greatest common factor (GCF) of 3920 and 3927 is 7.

GCF(3920,3927) = 7

We will now calculate the prime factors of 3920 and 3927, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3920 and 3927.

How to find the GCF of 3920 and 3927?

We will first find the prime factorization of 3920 and 3927. After we will calculate the factors of 3920 and 3927 and find the biggest common factor number .

Step-1: Prime Factorization of 3920

Prime factors of 3920 are 2, 5, 7. Prime factorization of 3920 in exponential form is:

3920 = 2⁴ × 5¹ × 7²

Step-2: Prime Factorization of 3927

Prime factors of 3927 are 3, 7, 11, 17. Prime factorization of 3927 in exponential form is:

3927 = 3¹ × 7¹ × 11¹ × 17¹

Step-3: Factors of 3920

List of positive integer factors of 3920 that divides 3920 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960

Step-4: Factors of 3927

List of positive integer factors of 3927 that divides 3920 without a remainder.

1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3920 and 3927. The biggest common factor number is the GCF number.
So the greatest common factor 3920 and 3927 is 7.

Also check out the Least Common Multiple of 3920 and 3927