What is the Greatest Common Factor of 1045 and 1061?

Greatest common factor (GCF) of 1045 and 1061 is 1.

GCF(1045,1061) = 1

We will now calculate the prime factors of 1045 and 1061, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1045 and 1061.

How to find the GCF of 1045 and 1061?

We will first find the prime factorization of 1045 and 1061. After we will calculate the factors of 1045 and 1061 and find the biggest common factor number .

Step-1: Prime Factorization of 1045

Prime factors of 1045 are 5, 11, 19. Prime factorization of 1045 in exponential form is:

1045 = 5¹ × 11¹ × 19¹

Step-2: Prime Factorization of 1061

Prime factors of 1061 are 1061. Prime factorization of 1061 in exponential form is:

1061 = 1061¹

Step-3: Factors of 1045

List of positive integer factors of 1045 that divides 1045 without a remainder.

1, 5, 11, 19, 55, 95, 209

Step-4: Factors of 1061

List of positive integer factors of 1061 that divides 1045 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1045 and 1061. The biggest common factor number is the GCF number.
So the greatest common factor 1045 and 1061 is 1.

Also check out the Least Common Multiple of 1045 and 1061