What is the Greatest Common Factor of 11415 and 11420?

Greatest common factor (GCF) of 11415 and 11420 is 5.

GCF(11415,11420) = 5

We will now calculate the prime factors of 11415 and 11420, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11415 and 11420.

How to find the GCF of 11415 and 11420?

We will first find the prime factorization of 11415 and 11420. After we will calculate the factors of 11415 and 11420 and find the biggest common factor number .

Step-1: Prime Factorization of 11415

Prime factors of 11415 are 3, 5, 761. Prime factorization of 11415 in exponential form is:

11415 = 3¹ × 5¹ × 761¹

Step-2: Prime Factorization of 11420

Prime factors of 11420 are 2, 5, 571. Prime factorization of 11420 in exponential form is:

11420 = 2² × 5¹ × 571¹

Step-3: Factors of 11415

List of positive integer factors of 11415 that divides 11415 without a remainder.

1, 3, 5, 15, 761, 2283, 3805

Step-4: Factors of 11420

List of positive integer factors of 11420 that divides 11415 without a remainder.

1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11415 and 11420. The biggest common factor number is the GCF number.
So the greatest common factor 11415 and 11420 is 5.

Also check out the Least Common Multiple of 11415 and 11420