What is the Greatest Common Factor of 65540 and 65558?

Greatest common factor (GCF) of 65540 and 65558 is 2.

GCF(65540,65558) = 2

We will now calculate the prime factors of 65540 and 65558, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65540 and 65558.

How to find the GCF of 65540 and 65558?

We will first find the prime factorization of 65540 and 65558. After we will calculate the factors of 65540 and 65558 and find the biggest common factor number .

Step-1: Prime Factorization of 65540

Prime factors of 65540 are 2, 5, 29, 113. Prime factorization of 65540 in exponential form is:

65540 = 2² × 5¹ × 29¹ × 113¹

Step-2: Prime Factorization of 65558

Prime factors of 65558 are 2, 32779. Prime factorization of 65558 in exponential form is:

65558 = 2¹ × 32779¹

Step-3: Factors of 65540

List of positive integer factors of 65540 that divides 65540 without a remainder.

1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 452, 565, 580, 1130, 2260, 3277, 6554, 13108, 16385, 32770

Step-4: Factors of 65558

List of positive integer factors of 65558 that divides 65540 without a remainder.

1, 2, 32779

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65540 and 65558. The biggest common factor number is the GCF number.
So the greatest common factor 65540 and 65558 is 2.

Also check out the Least Common Multiple of 65540 and 65558