What is the Greatest Common Factor of 2170 and 2190?

Greatest common factor (GCF) of 2170 and 2190 is 10.

GCF(2170,2190) = 10

We will now calculate the prime factors of 2170 and 2190, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2170 and 2190.

How to find the GCF of 2170 and 2190?

We will first find the prime factorization of 2170 and 2190. After we will calculate the factors of 2170 and 2190 and find the biggest common factor number .

Step-1: Prime Factorization of 2170

Prime factors of 2170 are 2, 5, 7, 31. Prime factorization of 2170 in exponential form is:

2170 = 2¹ × 5¹ × 7¹ × 31¹

Step-2: Prime Factorization of 2190

Prime factors of 2190 are 2, 3, 5, 73. Prime factorization of 2190 in exponential form is:

2190 = 2¹ × 3¹ × 5¹ × 73¹

Step-3: Factors of 2170

List of positive integer factors of 2170 that divides 2170 without a remainder.

1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085

Step-4: Factors of 2190

List of positive integer factors of 2190 that divides 2170 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2170 and 2190. The biggest common factor number is the GCF number.
So the greatest common factor 2170 and 2190 is 10.

Also check out the Least Common Multiple of 2170 and 2190