What is the Greatest Common Factor of 90515 and 90520?

Greatest common factor (GCF) of 90515 and 90520 is 5.

GCF(90515,90520) = 5

We will now calculate the prime factors of 90515 and 90520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90515 and 90520.

How to find the GCF of 90515 and 90520?

We will first find the prime factorization of 90515 and 90520. After we will calculate the factors of 90515 and 90520 and find the biggest common factor number .

Step-1: Prime Factorization of 90515

Prime factors of 90515 are 5, 43, 421. Prime factorization of 90515 in exponential form is:

90515 = 5¹ × 43¹ × 421¹

Step-2: Prime Factorization of 90520

Prime factors of 90520 are 2, 5, 31, 73. Prime factorization of 90520 in exponential form is:

90520 = 2³ × 5¹ × 31¹ × 73¹

Step-3: Factors of 90515

List of positive integer factors of 90515 that divides 90515 without a remainder.

1, 5, 43, 215, 421, 2105, 18103

Step-4: Factors of 90520

List of positive integer factors of 90520 that divides 90515 without a remainder.

1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 310, 365, 584, 620, 730, 1240, 1460, 2263, 2920, 4526, 9052, 11315, 18104, 22630, 45260

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90515 and 90520. The biggest common factor number is the GCF number.
So the greatest common factor 90515 and 90520 is 5.

Also check out the Least Common Multiple of 90515 and 90520