What is the Greatest Common Factor of 30685 and 30695?

Greatest common factor (GCF) of 30685 and 30695 is 5.

GCF(30685,30695) = 5

We will now calculate the prime factors of 30685 and 30695, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30685 and 30695.

How to find the GCF of 30685 and 30695?

We will first find the prime factorization of 30685 and 30695. After we will calculate the factors of 30685 and 30695 and find the biggest common factor number .

Step-1: Prime Factorization of 30685

Prime factors of 30685 are 5, 17, 19. Prime factorization of 30685 in exponential form is:

30685 = 5¹ × 17¹ × 19²

Step-2: Prime Factorization of 30695

Prime factors of 30695 are 5, 7, 877. Prime factorization of 30695 in exponential form is:

30695 = 5¹ × 7¹ × 877¹

Step-3: Factors of 30685

List of positive integer factors of 30685 that divides 30685 without a remainder.

1, 5, 17, 19, 85, 95, 323, 361, 1615, 1805, 6137

Step-4: Factors of 30695

List of positive integer factors of 30695 that divides 30685 without a remainder.

1, 5, 7, 35, 877, 4385, 6139

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30685 and 30695. The biggest common factor number is the GCF number.
So the greatest common factor 30685 and 30695 is 5.

Also check out the Least Common Multiple of 30685 and 30695