What is the Greatest Common Factor of 30428 and 30440?

Greatest common factor (GCF) of 30428 and 30440 is 4.

GCF(30428,30440) = 4

We will now calculate the prime factors of 30428 and 30440, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30428 and 30440.

How to find the GCF of 30428 and 30440?

We will first find the prime factorization of 30428 and 30440. After we will calculate the factors of 30428 and 30440 and find the biggest common factor number .

Step-1: Prime Factorization of 30428

Prime factors of 30428 are 2, 7607. Prime factorization of 30428 in exponential form is:

30428 = 2² × 7607¹

Step-2: Prime Factorization of 30440

Prime factors of 30440 are 2, 5, 761. Prime factorization of 30440 in exponential form is:

30440 = 2³ × 5¹ × 761¹

Step-3: Factors of 30428

List of positive integer factors of 30428 that divides 30428 without a remainder.

1, 2, 4, 7607, 15214

Step-4: Factors of 30440

List of positive integer factors of 30440 that divides 30428 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 761, 1522, 3044, 3805, 6088, 7610, 15220

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30428 and 30440. The biggest common factor number is the GCF number.
So the greatest common factor 30428 and 30440 is 4.

Also check out the Least Common Multiple of 30428 and 30440