What is the Greatest Common Factor of 1007 and 1020?

Greatest common factor (GCF) of 1007 and 1020 is 1.

GCF(1007,1020) = 1

We will now calculate the prime factors of 1007 and 1020, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1007 and 1020.

How to find the GCF of 1007 and 1020?

We will first find the prime factorization of 1007 and 1020. After we will calculate the factors of 1007 and 1020 and find the biggest common factor number .

Step-1: Prime Factorization of 1007

Prime factors of 1007 are 19, 53. Prime factorization of 1007 in exponential form is:

1007 = 19¹ × 53¹

Step-2: Prime Factorization of 1020

Prime factors of 1020 are 2, 3, 5, 17. Prime factorization of 1020 in exponential form is:

1020 = 2² × 3¹ × 5¹ × 17¹

Step-3: Factors of 1007

List of positive integer factors of 1007 that divides 1007 without a remainder.

1, 19, 53

Step-4: Factors of 1020

List of positive integer factors of 1020 that divides 1007 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1007 and 1020. The biggest common factor number is the GCF number.
So the greatest common factor 1007 and 1020 is 1.

Also check out the Least Common Multiple of 1007 and 1020