What is the Greatest Common Factor of 28007 and 28015?

Greatest common factor (GCF) of 28007 and 28015 is 1.

GCF(28007,28015) = 1

We will now calculate the prime factors of 28007 and 28015, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28007 and 28015.

How to find the GCF of 28007 and 28015?

We will first find the prime factorization of 28007 and 28015. After we will calculate the factors of 28007 and 28015 and find the biggest common factor number .

Step-1: Prime Factorization of 28007

Prime factors of 28007 are 7, 4001. Prime factorization of 28007 in exponential form is:

28007 = 7¹ × 4001¹

Step-2: Prime Factorization of 28015

Prime factors of 28015 are 5, 13, 431. Prime factorization of 28015 in exponential form is:

28015 = 5¹ × 13¹ × 431¹

Step-3: Factors of 28007

List of positive integer factors of 28007 that divides 28007 without a remainder.

1, 7, 4001

Step-4: Factors of 28015

List of positive integer factors of 28015 that divides 28007 without a remainder.

1, 5, 13, 65, 431, 2155, 5603

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28007 and 28015. The biggest common factor number is the GCF number.
So the greatest common factor 28007 and 28015 is 1.

Also check out the Least Common Multiple of 28007 and 28015