What is the Greatest Common Factor of 1045 and 1055?

Greatest common factor (GCF) of 1045 and 1055 is 5.

GCF(1045,1055) = 5

We will now calculate the prime factors of 1045 and 1055, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1045 and 1055.

How to find the GCF of 1045 and 1055?

We will first find the prime factorization of 1045 and 1055. After we will calculate the factors of 1045 and 1055 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 1055

Prime factors of 1055 are 5, 211. Prime factorization of 1055 in exponential form is:

1055 = 5¹ × 211¹

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 1055

List of positive integer factors of 1055 that divides 1045 without a remainder.

1, 5, 211

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1045 and 1055. The biggest common factor number is the GCF number.
So the greatest common factor 1045 and 1055 is 5.

Also check out the Least Common Multiple of 1045 and 1055