What is the Greatest Common Factor of 61580 and 61585?

Greatest common factor (GCF) of 61580 and 61585 is 5.

GCF(61580,61585) = 5

We will now calculate the prime factors of 61580 and 61585, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61580 and 61585.

How to find the GCF of 61580 and 61585?

We will first find the prime factorization of 61580 and 61585. After we will calculate the factors of 61580 and 61585 and find the biggest common factor number .

Step-1: Prime Factorization of 61580

Prime factors of 61580 are 2, 5, 3079. Prime factorization of 61580 in exponential form is:

61580 = 2² × 5¹ × 3079¹

Step-2: Prime Factorization of 61585

Prime factors of 61585 are 5, 109, 113. Prime factorization of 61585 in exponential form is:

61585 = 5¹ × 109¹ × 113¹

Step-3: Factors of 61580

List of positive integer factors of 61580 that divides 61580 without a remainder.

1, 2, 4, 5, 10, 20, 3079, 6158, 12316, 15395, 30790

Step-4: Factors of 61585

List of positive integer factors of 61585 that divides 61580 without a remainder.

1, 5, 109, 113, 545, 565, 12317

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61580 and 61585. The biggest common factor number is the GCF number.
So the greatest common factor 61580 and 61585 is 5.

Also check out the Least Common Multiple of 61580 and 61585