What is the Greatest Common Factor of 30505 and 30515?

Greatest common factor (GCF) of 30505 and 30515 is 5.

GCF(30505,30515) = 5

We will now calculate the prime factors of 30505 and 30515, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30505 and 30515.

How to find the GCF of 30505 and 30515?

We will first find the prime factorization of 30505 and 30515. After we will calculate the factors of 30505 and 30515 and find the biggest common factor number .

Step-1: Prime Factorization of 30505

Prime factors of 30505 are 5, 6101. Prime factorization of 30505 in exponential form is:

30505 = 5¹ × 6101¹

Step-2: Prime Factorization of 30515

Prime factors of 30515 are 5, 17, 359. Prime factorization of 30515 in exponential form is:

30515 = 5¹ × 17¹ × 359¹

Step-3: Factors of 30505

List of positive integer factors of 30505 that divides 30505 without a remainder.

1, 5, 6101

Step-4: Factors of 30515

List of positive integer factors of 30515 that divides 30505 without a remainder.

1, 5, 17, 85, 359, 1795, 6103

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30505 and 30515. The biggest common factor number is the GCF number.
So the greatest common factor 30505 and 30515 is 5.

Also check out the Least Common Multiple of 30505 and 30515