What is the Greatest Common Factor of 74780 and 74785?

Greatest common factor (GCF) of 74780 and 74785 is 5.

GCF(74780,74785) = 5

We will now calculate the prime factors of 74780 and 74785, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 74780 and 74785.

How to find the GCF of 74780 and 74785?

We will first find the prime factorization of 74780 and 74785. After we will calculate the factors of 74780 and 74785 and find the biggest common factor number .

Step-1: Prime Factorization of 74780

Prime factors of 74780 are 2, 5, 3739. Prime factorization of 74780 in exponential form is:

74780 = 2² × 5¹ × 3739¹

Step-2: Prime Factorization of 74785

Prime factors of 74785 are 5, 14957. Prime factorization of 74785 in exponential form is:

74785 = 5¹ × 14957¹

Step-3: Factors of 74780

List of positive integer factors of 74780 that divides 74780 without a remainder.

1, 2, 4, 5, 10, 20, 3739, 7478, 14956, 18695, 37390

Step-4: Factors of 74785

List of positive integer factors of 74785 that divides 74780 without a remainder.

1, 5, 14957

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 74780 and 74785. The biggest common factor number is the GCF number.
So the greatest common factor 74780 and 74785 is 5.

Also check out the Least Common Multiple of 74780 and 74785