What is the Greatest Common Factor of 61640 and 61655?

Greatest common factor (GCF) of 61640 and 61655 is 5.

GCF(61640,61655) = 5

We will now calculate the prime factors of 61640 and 61655, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61640 and 61655.

How to find the GCF of 61640 and 61655?

We will first find the prime factorization of 61640 and 61655. After we will calculate the factors of 61640 and 61655 and find the biggest common factor number .

Step-1: Prime Factorization of 61640

Prime factors of 61640 are 2, 5, 23, 67. Prime factorization of 61640 in exponential form is:

61640 = 2³ × 5¹ × 23¹ × 67¹

Step-2: Prime Factorization of 61655

Prime factors of 61655 are 5, 11, 19, 59. Prime factorization of 61655 in exponential form is:

61655 = 5¹ × 11¹ × 19¹ × 59¹

Step-3: Factors of 61640

List of positive integer factors of 61640 that divides 61640 without a remainder.

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 184, 230, 268, 335, 460, 536, 670, 920, 1340, 1541, 2680, 3082, 6164, 7705, 12328, 15410, 30820

Step-4: Factors of 61655

List of positive integer factors of 61655 that divides 61640 without a remainder.

1, 5, 11, 19, 55, 59, 95, 209, 295, 649, 1045, 1121, 3245, 5605, 12331

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61640 and 61655. The biggest common factor number is the GCF number.
So the greatest common factor 61640 and 61655 is 5.

Also check out the Least Common Multiple of 61640 and 61655