What is the Greatest Common Factor of 78990 and 79000?

Greatest common factor (GCF) of 78990 and 79000 is 10.

GCF(78990,79000) = 10

We will now calculate the prime factors of 78990 and 79000, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78990 and 79000.

How to find the GCF of 78990 and 79000?

We will first find the prime factorization of 78990 and 79000. After we will calculate the factors of 78990 and 79000 and find the biggest common factor number .

Step-1: Prime Factorization of 78990

Prime factors of 78990 are 2, 3, 5, 2633. Prime factorization of 78990 in exponential form is:

78990 = 2¹ × 3¹ × 5¹ × 2633¹

Step-2: Prime Factorization of 79000

Prime factors of 79000 are 2, 5, 79. Prime factorization of 79000 in exponential form is:

79000 = 2³ × 5³ × 79¹

Step-3: Factors of 78990

List of positive integer factors of 78990 that divides 78990 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2633, 5266, 7899, 13165, 15798, 26330, 39495

Step-4: Factors of 79000

List of positive integer factors of 79000 that divides 78990 without a remainder.

1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 125, 158, 200, 250, 316, 395, 500, 632, 790, 1000, 1580, 1975, 3160, 3950, 7900, 9875, 15800, 19750, 39500

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78990 and 79000. The biggest common factor number is the GCF number.
So the greatest common factor 78990 and 79000 is 10.

Also check out the Least Common Multiple of 78990 and 79000