What is the Greatest Common Factor of 28438 and 28458?

Greatest common factor (GCF) of 28438 and 28458 is 2.

GCF(28438,28458) = 2

We will now calculate the prime factors of 28438 and 28458, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28438 and 28458.

How to find the GCF of 28438 and 28458?

We will first find the prime factorization of 28438 and 28458. After we will calculate the factors of 28438 and 28458 and find the biggest common factor number .

Step-1: Prime Factorization of 28438

Prime factors of 28438 are 2, 59, 241. Prime factorization of 28438 in exponential form is:

28438 = 2¹ × 59¹ × 241¹

Step-2: Prime Factorization of 28458

Prime factors of 28458 are 2, 3, 17, 31. Prime factorization of 28458 in exponential form is:

28458 = 2¹ × 3³ × 17¹ × 31¹

Step-3: Factors of 28438

List of positive integer factors of 28438 that divides 28438 without a remainder.

1, 2, 59, 118, 241, 482, 14219

Step-4: Factors of 28458

List of positive integer factors of 28458 that divides 28438 without a remainder.

1, 2, 3, 6, 9, 17, 18, 27, 31, 34, 51, 54, 62, 93, 102, 153, 186, 279, 306, 459, 527, 558, 837, 918, 1054, 1581, 1674, 3162, 4743, 9486, 14229

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28438 and 28458. The biggest common factor number is the GCF number.
So the greatest common factor 28438 and 28458 is 2.

Also check out the Least Common Multiple of 28438 and 28458