What is the Greatest Common Factor of 11620 and 11640?

Greatest common factor (GCF) of 11620 and 11640 is 20.

GCF(11620,11640) = 20

We will now calculate the prime factors of 11620 and 11640, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11620 and 11640.

How to find the GCF of 11620 and 11640?

We will first find the prime factorization of 11620 and 11640. After we will calculate the factors of 11620 and 11640 and find the biggest common factor number .

Step-1: Prime Factorization of 11620

Prime factors of 11620 are 2, 5, 7, 83. Prime factorization of 11620 in exponential form is:

11620 = 2² × 5¹ × 7¹ × 83¹

Step-2: Prime Factorization of 11640

Prime factors of 11640 are 2, 3, 5, 97. Prime factorization of 11640 in exponential form is:

11640 = 2³ × 3¹ × 5¹ × 97¹

Step-3: Factors of 11620

List of positive integer factors of 11620 that divides 11620 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 415, 581, 830, 1162, 1660, 2324, 2905, 5810

Step-4: Factors of 11640

List of positive integer factors of 11640 that divides 11620 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1940, 2328, 2910, 3880, 5820

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11620 and 11640. The biggest common factor number is the GCF number.
So the greatest common factor 11620 and 11640 is 20.

Also check out the Least Common Multiple of 11620 and 11640