What is the Greatest Common Factor of 91238 and 91242?

Greatest common factor (GCF) of 91238 and 91242 is 2.

GCF(91238,91242) = 2

We will now calculate the prime factors of 91238 and 91242, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91238 and 91242.

How to find the GCF of 91238 and 91242?

We will first find the prime factorization of 91238 and 91242. After we will calculate the factors of 91238 and 91242 and find the biggest common factor number .

Step-1: Prime Factorization of 91238

Prime factors of 91238 are 2, 7, 19. Prime factorization of 91238 in exponential form is:

91238 = 2¹ × 7⁴ × 19¹

Step-2: Prime Factorization of 91242

Prime factors of 91242 are 2, 3, 37, 137. Prime factorization of 91242 in exponential form is:

91242 = 2¹ × 3² × 37¹ × 137¹

Step-3: Factors of 91238

List of positive integer factors of 91238 that divides 91238 without a remainder.

1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 343, 686, 931, 1862, 2401, 4802, 6517, 13034, 45619

Step-4: Factors of 91242

List of positive integer factors of 91242 that divides 91238 without a remainder.

1, 2, 3, 6, 9, 18, 37, 74, 111, 137, 222, 274, 333, 411, 666, 822, 1233, 2466, 5069, 10138, 15207, 30414, 45621

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91238 and 91242. The biggest common factor number is the GCF number.
So the greatest common factor 91238 and 91242 is 2.

Also check out the Least Common Multiple of 91238 and 91242