What is the Greatest Common Factor of 27515 and 27520?

Greatest common factor (GCF) of 27515 and 27520 is 5.

GCF(27515,27520) = 5

We will now calculate the prime factors of 27515 and 27520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27515 and 27520.

How to find the GCF of 27515 and 27520?

We will first find the prime factorization of 27515 and 27520. After we will calculate the factors of 27515 and 27520 and find the biggest common factor number .

Step-1: Prime Factorization of 27515

Prime factors of 27515 are 5, 5503. Prime factorization of 27515 in exponential form is:

27515 = 5¹ × 5503¹

Step-2: Prime Factorization of 27520

Prime factors of 27520 are 2, 5, 43. Prime factorization of 27520 in exponential form is:

27520 = 2⁷ × 5¹ × 43¹

Step-3: Factors of 27515

List of positive integer factors of 27515 that divides 27515 without a remainder.

1, 5, 5503

Step-4: Factors of 27520

List of positive integer factors of 27520 that divides 27515 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 860, 1376, 1720, 2752, 3440, 5504, 6880, 13760

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27515 and 27520. The biggest common factor number is the GCF number.
So the greatest common factor 27515 and 27520 is 5.

Also check out the Least Common Multiple of 27515 and 27520