What is the Greatest Common Factor of 2091 and 2100?

Greatest common factor (GCF) of 2091 and 2100 is 3.

GCF(2091,2100) = 3

We will now calculate the prime factors of 2091 and 2100, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2091 and 2100.

How to find the GCF of 2091 and 2100?

We will first find the prime factorization of 2091 and 2100. After we will calculate the factors of 2091 and 2100 and find the biggest common factor number .

Step-1: Prime Factorization of 2091

Prime factors of 2091 are 3, 17, 41. Prime factorization of 2091 in exponential form is:

2091 = 3¹ × 17¹ × 41¹

Step-2: Prime Factorization of 2100

Prime factors of 2100 are 2, 3, 5, 7. Prime factorization of 2100 in exponential form is:

2100 = 2² × 3¹ × 5² × 7¹

Step-3: Factors of 2091

List of positive integer factors of 2091 that divides 2091 without a remainder.

1, 3, 17, 41, 51, 123, 697

Step-4: Factors of 2100

List of positive integer factors of 2100 that divides 2091 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2091 and 2100. The biggest common factor number is the GCF number.
So the greatest common factor 2091 and 2100 is 3.

Also check out the Least Common Multiple of 2091 and 2100