What is the Greatest Common Factor of 1428 and 1432?

Greatest common factor (GCF) of 1428 and 1432 is 4.

GCF(1428,1432) = 4

We will now calculate the prime factors of 1428 and 1432, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1428 and 1432.

How to find the GCF of 1428 and 1432?

We will first find the prime factorization of 1428 and 1432. After we will calculate the factors of 1428 and 1432 and find the biggest common factor number .

Step-1: Prime Factorization of 1428

Prime factors of 1428 are 2, 3, 7, 17. Prime factorization of 1428 in exponential form is:

1428 = 2² × 3¹ × 7¹ × 17¹

Step-2: Prime Factorization of 1432

Prime factors of 1432 are 2, 179. Prime factorization of 1432 in exponential form is:

1432 = 2³ × 179¹

Step-3: Factors of 1428

List of positive integer factors of 1428 that divides 1428 without a remainder.

1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714

Step-4: Factors of 1432

List of positive integer factors of 1432 that divides 1428 without a remainder.

1, 2, 4, 8, 179, 358, 716

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1428 and 1432. The biggest common factor number is the GCF number.
So the greatest common factor 1428 and 1432 is 4.

Also check out the Least Common Multiple of 1428 and 1432