What is the Greatest Common Factor of 42530 and 42540?

Greatest common factor (GCF) of 42530 and 42540 is 10.

GCF(42530,42540) = 10

We will now calculate the prime factors of 42530 and 42540, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42530 and 42540.

How to find the GCF of 42530 and 42540?

We will first find the prime factorization of 42530 and 42540. After we will calculate the factors of 42530 and 42540 and find the biggest common factor number .

Step-1: Prime Factorization of 42530

Prime factors of 42530 are 2, 5, 4253. Prime factorization of 42530 in exponential form is:

42530 = 2¹ × 5¹ × 4253¹

Step-2: Prime Factorization of 42540

Prime factors of 42540 are 2, 3, 5, 709. Prime factorization of 42540 in exponential form is:

42540 = 2² × 3¹ × 5¹ × 709¹

Step-3: Factors of 42530

List of positive integer factors of 42530 that divides 42530 without a remainder.

1, 2, 5, 10, 4253, 8506, 21265

Step-4: Factors of 42540

List of positive integer factors of 42540 that divides 42530 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 709, 1418, 2127, 2836, 3545, 4254, 7090, 8508, 10635, 14180, 21270

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42530 and 42540. The biggest common factor number is the GCF number.
So the greatest common factor 42530 and 42540 is 10.

Also check out the Least Common Multiple of 42530 and 42540