What is the Greatest Common Factor of 74156 and 74170?

Greatest common factor (GCF) of 74156 and 74170 is 2.

GCF(74156,74170) = 2

We will now calculate the prime factors of 74156 and 74170, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 74156 and 74170.

How to find the GCF of 74156 and 74170?

We will first find the prime factorization of 74156 and 74170. After we will calculate the factors of 74156 and 74170 and find the biggest common factor number .

Step-1: Prime Factorization of 74156

Prime factors of 74156 are 2, 18539. Prime factorization of 74156 in exponential form is:

74156 = 2² × 18539¹

Step-2: Prime Factorization of 74170

Prime factors of 74170 are 2, 5, 7417. Prime factorization of 74170 in exponential form is:

74170 = 2¹ × 5¹ × 7417¹

Step-3: Factors of 74156

List of positive integer factors of 74156 that divides 74156 without a remainder.

1, 2, 4, 18539, 37078

Step-4: Factors of 74170

List of positive integer factors of 74170 that divides 74156 without a remainder.

1, 2, 5, 10, 7417, 14834, 37085

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 74156 and 74170. The biggest common factor number is the GCF number.
So the greatest common factor 74156 and 74170 is 2.

Also check out the Least Common Multiple of 74156 and 74170