What is the Greatest Common Factor of 61558 and 61570?

Greatest common factor (GCF) of 61558 and 61570 is 2.

GCF(61558,61570) = 2

We will now calculate the prime factors of 61558 and 61570, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61558 and 61570.

How to find the GCF of 61558 and 61570?

We will first find the prime factorization of 61558 and 61570. After we will calculate the factors of 61558 and 61570 and find the biggest common factor number .

Step-1: Prime Factorization of 61558

Prime factors of 61558 are 2, 7, 4397. Prime factorization of 61558 in exponential form is:

61558 = 2¹ × 7¹ × 4397¹

Step-2: Prime Factorization of 61570

Prime factors of 61570 are 2, 5, 47, 131. Prime factorization of 61570 in exponential form is:

61570 = 2¹ × 5¹ × 47¹ × 131¹

Step-3: Factors of 61558

List of positive integer factors of 61558 that divides 61558 without a remainder.

1, 2, 7, 14, 4397, 8794, 30779

Step-4: Factors of 61570

List of positive integer factors of 61570 that divides 61558 without a remainder.

1, 2, 5, 10, 47, 94, 131, 235, 262, 470, 655, 1310, 6157, 12314, 30785

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61558 and 61570. The biggest common factor number is the GCF number.
So the greatest common factor 61558 and 61570 is 2.

Also check out the Least Common Multiple of 61558 and 61570