What is the Greatest Common Factor of 42042 and 42055?

Greatest common factor (GCF) of 42042 and 42055 is 13.

GCF(42042,42055) = 13

We will now calculate the prime factors of 42042 and 42055, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42042 and 42055.

How to find the GCF of 42042 and 42055?

We will first find the prime factorization of 42042 and 42055. After we will calculate the factors of 42042 and 42055 and find the biggest common factor number .

Step-1: Prime Factorization of 42042

Prime factors of 42042 are 2, 3, 7, 11, 13. Prime factorization of 42042 in exponential form is:

42042 = 2¹ × 3¹ × 7² × 11¹ × 13¹

Step-2: Prime Factorization of 42055

Prime factors of 42055 are 5, 13, 647. Prime factorization of 42055 in exponential form is:

42055 = 5¹ × 13¹ × 647¹

Step-3: Factors of 42042

List of positive integer factors of 42042 that divides 42042 without a remainder.

1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 49, 66, 77, 78, 91, 98, 143, 147, 154, 182, 231, 273, 286, 294, 429, 462, 539, 546, 637, 858, 1001, 1078, 1274, 1617, 1911, 2002, 3003, 3234, 3822, 6006, 7007, 14014, 21021

Step-4: Factors of 42055

List of positive integer factors of 42055 that divides 42042 without a remainder.

1, 5, 13, 65, 647, 3235, 8411

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42042 and 42055. The biggest common factor number is the GCF number.
So the greatest common factor 42042 and 42055 is 13.

Also check out the Least Common Multiple of 42042 and 42055