What is the Greatest Common Factor of 1078 and 1090?

Greatest common factor (GCF) of 1078 and 1090 is 2.

GCF(1078,1090) = 2

We will now calculate the prime factors of 1078 and 1090, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1078 and 1090.

How to find the GCF of 1078 and 1090?

We will first find the prime factorization of 1078 and 1090. After we will calculate the factors of 1078 and 1090 and find the biggest common factor number .

Step-1: Prime Factorization of 1078

Prime factors of 1078 are 2, 7, 11. Prime factorization of 1078 in exponential form is:

1078 = 2¹ × 7² × 11¹

Step-2: Prime Factorization of 1090

Prime factors of 1090 are 2, 5, 109. Prime factorization of 1090 in exponential form is:

1090 = 2¹ × 5¹ × 109¹

Step-3: Factors of 1078

List of positive integer factors of 1078 that divides 1078 without a remainder.

1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539

Step-4: Factors of 1090

List of positive integer factors of 1090 that divides 1078 without a remainder.

1, 2, 5, 10, 109, 218, 545

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1078 and 1090. The biggest common factor number is the GCF number.
So the greatest common factor 1078 and 1090 is 2.

Also check out the Least Common Multiple of 1078 and 1090