What is the Greatest Common Factor of 42516 and 42520?

Greatest common factor (GCF) of 42516 and 42520 is 4.

GCF(42516,42520) = 4

We will now calculate the prime factors of 42516 and 42520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42516 and 42520.

How to find the GCF of 42516 and 42520?

We will first find the prime factorization of 42516 and 42520. After we will calculate the factors of 42516 and 42520 and find the biggest common factor number .

Step-1: Prime Factorization of 42516

Prime factors of 42516 are 2, 3, 1181. Prime factorization of 42516 in exponential form is:

42516 = 2² × 3² × 1181¹

Step-2: Prime Factorization of 42520

Prime factors of 42520 are 2, 5, 1063. Prime factorization of 42520 in exponential form is:

42520 = 2³ × 5¹ × 1063¹

Step-3: Factors of 42516

List of positive integer factors of 42516 that divides 42516 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 1181, 2362, 3543, 4724, 7086, 10629, 14172, 21258

Step-4: Factors of 42520

List of positive integer factors of 42520 that divides 42516 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1063, 2126, 4252, 5315, 8504, 10630, 21260

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42516 and 42520. The biggest common factor number is the GCF number.
So the greatest common factor 42516 and 42520 is 4.

Also check out the Least Common Multiple of 42516 and 42520