What is the Greatest Common Factor of 77142 and 77158?

Greatest common factor (GCF) of 77142 and 77158 is 2.

GCF(77142,77158) = 2

We will now calculate the prime factors of 77142 and 77158, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77142 and 77158.

How to find the GCF of 77142 and 77158?

We will first find the prime factorization of 77142 and 77158. After we will calculate the factors of 77142 and 77158 and find the biggest common factor number .

Step-1: Prime Factorization of 77142

Prime factors of 77142 are 2, 3, 13, 23, 43. Prime factorization of 77142 in exponential form is:

77142 = 2¹ × 3¹ × 13¹ × 23¹ × 43¹

Step-2: Prime Factorization of 77158

Prime factors of 77158 are 2, 173, 223. Prime factorization of 77158 in exponential form is:

77158 = 2¹ × 173¹ × 223¹

Step-3: Factors of 77142

List of positive integer factors of 77142 that divides 77142 without a remainder.

1, 2, 3, 6, 13, 23, 26, 39, 43, 46, 69, 78, 86, 129, 138, 258, 299, 559, 598, 897, 989, 1118, 1677, 1794, 1978, 2967, 3354, 5934, 12857, 25714, 38571

Step-4: Factors of 77158

List of positive integer factors of 77158 that divides 77142 without a remainder.

1, 2, 173, 223, 346, 446, 38579

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77142 and 77158. The biggest common factor number is the GCF number.
So the greatest common factor 77142 and 77158 is 2.

Also check out the Least Common Multiple of 77142 and 77158