What is the Greatest Common Factor of 97760 and 97780?

Greatest common factor (GCF) of 97760 and 97780 is 20.

GCF(97760,97780) = 20

We will now calculate the prime factors of 97760 and 97780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 97760 and 97780.

How to find the GCF of 97760 and 97780?

We will first find the prime factorization of 97760 and 97780. After we will calculate the factors of 97760 and 97780 and find the biggest common factor number .

Step-1: Prime Factorization of 97760

Prime factors of 97760 are 2, 5, 13, 47. Prime factorization of 97760 in exponential form is:

97760 = 2⁵ × 5¹ × 13¹ × 47¹

Step-2: Prime Factorization of 97780

Prime factors of 97780 are 2, 5, 4889. Prime factorization of 97780 in exponential form is:

97780 = 2² × 5¹ × 4889¹

Step-3: Factors of 97760

List of positive integer factors of 97760 that divides 97760 without a remainder.

1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 65, 80, 94, 104, 130, 160, 188, 208, 235, 260, 376, 416, 470, 520, 611, 752, 940, 1040, 1222, 1504, 1880, 2080, 2444, 3055, 3760, 4888, 6110, 7520, 9776, 12220, 19552, 24440, 48880

Step-4: Factors of 97780

List of positive integer factors of 97780 that divides 97760 without a remainder.

1, 2, 4, 5, 10, 20, 4889, 9778, 19556, 24445, 48890

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 97760 and 97780. The biggest common factor number is the GCF number.
So the greatest common factor 97760 and 97780 is 20.

Also check out the Least Common Multiple of 97760 and 97780