What is the Greatest Common Factor of 30345 and 30357?

Greatest common factor (GCF) of 30345 and 30357 is 3.

GCF(30345,30357) = 3

We will now calculate the prime factors of 30345 and 30357, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30345 and 30357.

How to find the GCF of 30345 and 30357?

We will first find the prime factorization of 30345 and 30357. After we will calculate the factors of 30345 and 30357 and find the biggest common factor number .

Step-1: Prime Factorization of 30345

Prime factors of 30345 are 3, 5, 7, 17. Prime factorization of 30345 in exponential form is:

30345 = 3¹ × 5¹ × 7¹ × 17²

Step-2: Prime Factorization of 30357

Prime factors of 30357 are 3, 3373. Prime factorization of 30357 in exponential form is:

30357 = 3² × 3373¹

Step-3: Factors of 30345

List of positive integer factors of 30345 that divides 30345 without a remainder.

1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 289, 357, 595, 867, 1445, 1785, 2023, 4335, 6069, 10115

Step-4: Factors of 30357

List of positive integer factors of 30357 that divides 30345 without a remainder.

1, 3, 9, 3373, 10119

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30345 and 30357. The biggest common factor number is the GCF number.
So the greatest common factor 30345 and 30357 is 3.

Also check out the Least Common Multiple of 30345 and 30357