What is the Greatest Common Factor of 77000 and 77020?

Greatest common factor (GCF) of 77000 and 77020 is 20.

GCF(77000,77020) = 20

We will now calculate the prime factors of 77000 and 77020, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77000 and 77020.

How to find the GCF of 77000 and 77020?

We will first find the prime factorization of 77000 and 77020. After we will calculate the factors of 77000 and 77020 and find the biggest common factor number .

Step-1: Prime Factorization of 77000

Prime factors of 77000 are 2, 5, 7, 11. Prime factorization of 77000 in exponential form is:

77000 = 2³ × 5³ × 7¹ × 11¹

Step-2: Prime Factorization of 77020

Prime factors of 77020 are 2, 5, 3851. Prime factorization of 77020 in exponential form is:

77020 = 2² × 5¹ × 3851¹

Step-3: Factors of 77000

List of positive integer factors of 77000 that divides 77000 without a remainder.

1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 88, 100, 110, 125, 140, 154, 175, 200, 220, 250, 275, 280, 308, 350, 385, 440, 500, 550, 616, 700, 770, 875, 1000, 1100, 1375, 1400, 1540, 1750, 1925, 2200, 2750, 3080, 3500, 3850, 5500, 7000, 7700, 9625, 11000, 15400, 19250, 38500

Step-4: Factors of 77020

List of positive integer factors of 77020 that divides 77000 without a remainder.

1, 2, 4, 5, 10, 20, 3851, 7702, 15404, 19255, 38510

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77000 and 77020. The biggest common factor number is the GCF number.
So the greatest common factor 77000 and 77020 is 20.

Also check out the Least Common Multiple of 77000 and 77020