What is the Greatest Common Factor of 98720 and 98740?

Greatest common factor (GCF) of 98720 and 98740 is 20.

GCF(98720,98740) = 20

We will now calculate the prime factors of 98720 and 98740, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 98720 and 98740.

How to find the GCF of 98720 and 98740?

We will first find the prime factorization of 98720 and 98740. After we will calculate the factors of 98720 and 98740 and find the biggest common factor number .

Step-1: Prime Factorization of 98720

Prime factors of 98720 are 2, 5, 617. Prime factorization of 98720 in exponential form is:

98720 = 2⁵ × 5¹ × 617¹

Step-2: Prime Factorization of 98740

Prime factors of 98740 are 2, 5, 4937. Prime factorization of 98740 in exponential form is:

98740 = 2² × 5¹ × 4937¹

Step-3: Factors of 98720

List of positive integer factors of 98720 that divides 98720 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 617, 1234, 2468, 3085, 4936, 6170, 9872, 12340, 19744, 24680, 49360

Step-4: Factors of 98740

List of positive integer factors of 98740 that divides 98720 without a remainder.

1, 2, 4, 5, 10, 20, 4937, 9874, 19748, 24685, 49370

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 98720 and 98740. The biggest common factor number is the GCF number.
So the greatest common factor 98720 and 98740 is 20.

Also check out the Least Common Multiple of 98720 and 98740