What is the Greatest Common Factor of 42478 and 42497?

Greatest common factor (GCF) of 42478 and 42497 is 1.

GCF(42478,42497) = 1

We will now calculate the prime factors of 42478 and 42497, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42478 and 42497.

How to find the GCF of 42478 and 42497?

We will first find the prime factorization of 42478 and 42497. After we will calculate the factors of 42478 and 42497 and find the biggest common factor number .

Step-1: Prime Factorization of 42478

Prime factors of 42478 are 2, 67, 317. Prime factorization of 42478 in exponential form is:

42478 = 2¹ × 67¹ × 317¹

Step-2: Prime Factorization of 42497

Prime factors of 42497 are 7, 13, 467. Prime factorization of 42497 in exponential form is:

42497 = 7¹ × 13¹ × 467¹

Step-3: Factors of 42478

List of positive integer factors of 42478 that divides 42478 without a remainder.

1, 2, 67, 134, 317, 634, 21239

Step-4: Factors of 42497

List of positive integer factors of 42497 that divides 42478 without a remainder.

1, 7, 13, 91, 467, 3269, 6071

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42478 and 42497. The biggest common factor number is the GCF number.
So the greatest common factor 42478 and 42497 is 1.

Also check out the Least Common Multiple of 42478 and 42497