What is the Greatest Common Factor of 28109 and 28120?

Greatest common factor (GCF) of 28109 and 28120 is 1.

GCF(28109,28120) = 1

We will now calculate the prime factors of 28109 and 28120, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28109 and 28120.

How to find the GCF of 28109 and 28120?

We will first find the prime factorization of 28109 and 28120. After we will calculate the factors of 28109 and 28120 and find the biggest common factor number .

Step-1: Prime Factorization of 28109

Prime factors of 28109 are 28109. Prime factorization of 28109 in exponential form is:

28109 = 28109¹

Step-2: Prime Factorization of 28120

Prime factors of 28120 are 2, 5, 19, 37. Prime factorization of 28120 in exponential form is:

28120 = 2³ × 5¹ × 19¹ × 37¹

Step-3: Factors of 28109

List of positive integer factors of 28109 that divides 28109 without a remainder.

Step-4: Factors of 28120

List of positive integer factors of 28120 that divides 28109 without a remainder.

1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1406, 1480, 2812, 3515, 5624, 7030, 14060

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28109 and 28120. The biggest common factor number is the GCF number.
So the greatest common factor 28109 and 28120 is 1.

Also check out the Least Common Multiple of 28109 and 28120