What is the Greatest Common Factor of 10640 and 10655?

Greatest common factor (GCF) of 10640 and 10655 is 5.

GCF(10640,10655) = 5

We will now calculate the prime factors of 10640 and 10655, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10640 and 10655.

How to find the GCF of 10640 and 10655?

We will first find the prime factorization of 10640 and 10655. After we will calculate the factors of 10640 and 10655 and find the biggest common factor number .

Step-1: Prime Factorization of 10640

Prime factors of 10640 are 2, 5, 7, 19. Prime factorization of 10640 in exponential form is:

10640 = 2⁴ × 5¹ × 7¹ × 19¹

Step-2: Prime Factorization of 10655

Prime factors of 10655 are 5, 2131. Prime factorization of 10655 in exponential form is:

10655 = 5¹ × 2131¹

Step-3: Factors of 10640

List of positive integer factors of 10640 that divides 10640 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320

Step-4: Factors of 10655

List of positive integer factors of 10655 that divides 10640 without a remainder.

1, 5, 2131

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 10640 and 10655. The biggest common factor number is the GCF number.
So the greatest common factor 10640 and 10655 is 5.

Also check out the Least Common Multiple of 10640 and 10655