What is the Greatest Common Factor of 79209 and 79220?

Greatest common factor (GCF) of 79209 and 79220 is 1.

GCF(79209,79220) = 1

We will now calculate the prime factors of 79209 and 79220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 79209 and 79220.

How to find the GCF of 79209 and 79220?

We will first find the prime factorization of 79209 and 79220. After we will calculate the factors of 79209 and 79220 and find the biggest common factor number .

Step-1: Prime Factorization of 79209

Prime factors of 79209 are 3, 13, 677. Prime factorization of 79209 in exponential form is:

79209 = 3² × 13¹ × 677¹

Step-2: Prime Factorization of 79220

Prime factors of 79220 are 2, 5, 17, 233. Prime factorization of 79220 in exponential form is:

79220 = 2² × 5¹ × 17¹ × 233¹

Step-3: Factors of 79209

List of positive integer factors of 79209 that divides 79209 without a remainder.

1, 3, 9, 13, 39, 117, 677, 2031, 6093, 8801, 26403

Step-4: Factors of 79220

List of positive integer factors of 79220 that divides 79209 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 233, 340, 466, 932, 1165, 2330, 3961, 4660, 7922, 15844, 19805, 39610

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 79209 and 79220. The biggest common factor number is the GCF number.
So the greatest common factor 79209 and 79220 is 1.

Also check out the Least Common Multiple of 79209 and 79220