What is the Greatest Common Factor of 61550 and 61565?

Greatest common factor (GCF) of 61550 and 61565 is 5.

GCF(61550,61565) = 5

We will now calculate the prime factors of 61550 and 61565, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61550 and 61565.

How to find the GCF of 61550 and 61565?

We will first find the prime factorization of 61550 and 61565. After we will calculate the factors of 61550 and 61565 and find the biggest common factor number .

Step-1: Prime Factorization of 61550

Prime factors of 61550 are 2, 5, 1231. Prime factorization of 61550 in exponential form is:

61550 = 2¹ × 5² × 1231¹

Step-2: Prime Factorization of 61565

Prime factors of 61565 are 5, 7, 1759. Prime factorization of 61565 in exponential form is:

61565 = 5¹ × 7¹ × 1759¹

Step-3: Factors of 61550

List of positive integer factors of 61550 that divides 61550 without a remainder.

1, 2, 5, 10, 25, 50, 1231, 2462, 6155, 12310, 30775

Step-4: Factors of 61565

List of positive integer factors of 61565 that divides 61550 without a remainder.

1, 5, 7, 35, 1759, 8795, 12313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61550 and 61565. The biggest common factor number is the GCF number.
So the greatest common factor 61550 and 61565 is 5.

Also check out the Least Common Multiple of 61550 and 61565