What is the Greatest Common Factor of 3515 and 3520?

Greatest common factor (GCF) of 3515 and 3520 is 5.

GCF(3515,3520) = 5

We will now calculate the prime factors of 3515 and 3520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3515 and 3520.

How to find the GCF of 3515 and 3520?

We will first find the prime factorization of 3515 and 3520. After we will calculate the factors of 3515 and 3520 and find the biggest common factor number .

Step-1: Prime Factorization of 3515

Prime factors of 3515 are 5, 19, 37. Prime factorization of 3515 in exponential form is:

3515 = 5¹ × 19¹ × 37¹

Step-2: Prime Factorization of 3520

Prime factors of 3520 are 2, 5, 11. Prime factorization of 3520 in exponential form is:

3520 = 2⁶ × 5¹ × 11¹

Step-3: Factors of 3515

List of positive integer factors of 3515 that divides 3515 without a remainder.

1, 5, 19, 37, 95, 185, 703

Step-4: Factors of 3520

List of positive integer factors of 3520 that divides 3515 without a remainder.

1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3515 and 3520. The biggest common factor number is the GCF number.
So the greatest common factor 3515 and 3520 is 5.

Also check out the Least Common Multiple of 3515 and 3520