What is the Greatest Common Factor of 38858 and 38870?

Greatest common factor (GCF) of 38858 and 38870 is 2.

GCF(38858,38870) = 2

We will now calculate the prime factors of 38858 and 38870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38858 and 38870.

How to find the GCF of 38858 and 38870?

We will first find the prime factorization of 38858 and 38870. After we will calculate the factors of 38858 and 38870 and find the biggest common factor number .

Step-1: Prime Factorization of 38858

Prime factors of 38858 are 2, 19429. Prime factorization of 38858 in exponential form is:

38858 = 2¹ × 19429¹

Step-2: Prime Factorization of 38870

Prime factors of 38870 are 2, 5, 13, 23. Prime factorization of 38870 in exponential form is:

38870 = 2¹ × 5¹ × 13² × 23¹

Step-3: Factors of 38858

List of positive integer factors of 38858 that divides 38858 without a remainder.

1, 2, 19429

Step-4: Factors of 38870

List of positive integer factors of 38870 that divides 38858 without a remainder.

1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 169, 230, 299, 338, 598, 845, 1495, 1690, 2990, 3887, 7774, 19435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38858 and 38870. The biggest common factor number is the GCF number.
So the greatest common factor 38858 and 38870 is 2.

Also check out the Least Common Multiple of 38858 and 38870