What is the Greatest Common Factor of 30728 and 30740?

Greatest common factor (GCF) of 30728 and 30740 is 4.

GCF(30728,30740) = 4

We will now calculate the prime factors of 30728 and 30740, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30728 and 30740.

How to find the GCF of 30728 and 30740?

We will first find the prime factorization of 30728 and 30740. After we will calculate the factors of 30728 and 30740 and find the biggest common factor number .

Step-1: Prime Factorization of 30728

Prime factors of 30728 are 2, 23, 167. Prime factorization of 30728 in exponential form is:

30728 = 2³ × 23¹ × 167¹

Step-2: Prime Factorization of 30740

Prime factors of 30740 are 2, 5, 29, 53. Prime factorization of 30740 in exponential form is:

30740 = 2² × 5¹ × 29¹ × 53¹

Step-3: Factors of 30728

List of positive integer factors of 30728 that divides 30728 without a remainder.

1, 2, 4, 8, 23, 46, 92, 167, 184, 334, 668, 1336, 3841, 7682, 15364

Step-4: Factors of 30740

List of positive integer factors of 30740 that divides 30728 without a remainder.

1, 2, 4, 5, 10, 20, 29, 53, 58, 106, 116, 145, 212, 265, 290, 530, 580, 1060, 1537, 3074, 6148, 7685, 15370

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30728 and 30740. The biggest common factor number is the GCF number.
So the greatest common factor 30728 and 30740 is 4.

Also check out the Least Common Multiple of 30728 and 30740