Greatest Common Factor of 425 and 428

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 425, 428 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 425 and 428 is 1.

GCF(425,428) = 1

GCF of 425 and 428

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 425 and 428

GCF of 425 and 428 is 1

Prime Factorization of 425


5 425
5 85
17 17
1

Prime factors of 425 are 5,17. Prime factorization of 425 in exponential form is:

425 = 52×171

Prime Factorization of 428


2 428
2 214
107 107
1

Prime factors of 428 are 2,107. Prime factorization of 428 in exponential form is:

428 = 22×1071

∴ So by taking common prime factors GCF of 425 and 428 is 1

Greatest Common Factor of 425 and 428 by matching factors method

Factors of 425

List of positive integer factors of 425 that divides 425 without a remainder.

1,5,17,25,85,425

Factors of 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Greatest Common Factor

We found the factors and prime factorization of 425 and 428. The biggest common factor number is the GCF number.
So the greatest common factor 425 and 428 is 1.

Also check out the Least Common Multiple of 425 and 428

Properties of GCF 425 and 428

(i) The GCF of 425 and 428 is associative

GCF of 425 and 428 = GCF of 428 and 425

Related Greatest Common Factor of 425

Related Greatest Common Factor of 428

Frequently Asked Questions on GCF of 425 and 428

1. What is the GCF of 425 and 428?

Answer: GCF of 425 and 428 is 1.

2. What are the Factors of 425?

Answer: Factors of 425 are 1, 5, 17, 25, 85, 425. There are 6 integers that are factors of 425. The greatest factor of 425 is 425.

3. What are the Factors of 428?

Answer: Factors of 428 are 1, 2, 4, 107, 214, 428. There are 6 integers that are factors of 428. The greatest factor of 428 is 428.

4. How to Find the GCF of 425 and 428?

Answer:

Greatest Common Factor of 425 and 428 = 1

Step 1: Find the prime factorization of 425

425 = 5 x 5 x 17

Step 2: Find the prime factorization of 428

428 = 2 x 2 x 107

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = = 1

Step 4: Therefore, the greatest common factor of 425 and 428 is 1