What is the Greatest Common Factor of 42540 and 42548?

Greatest common factor (GCF) of 42540 and 42548 is 4.

GCF(42540,42548) = 4

We will now calculate the prime factors of 42540 and 42548, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42540 and 42548.

How to find the GCF of 42540 and 42548?

We will first find the prime factorization of 42540 and 42548. After we will calculate the factors of 42540 and 42548 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 42548

Prime factors of 42548 are 2, 11, 967. Prime factorization of 42548 in exponential form is:

42548 = 2² × 11¹ × 967¹

Step-3: Factors of 42540

List of positive integer factors of 42540 that divides 42540 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

Step-4: Factors of 42548

List of positive integer factors of 42548 that divides 42540 without a remainder.

1, 2, 4, 11, 22, 44, 967, 1934, 3868, 10637, 21274

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42540 and 42548. The biggest common factor number is the GCF number.
So the greatest common factor 42540 and 42548 is 4.

Also check out the Least Common Multiple of 42540 and 42548