Greatest Common Factor of 1420 and 1422

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 1420, 1422 i.e. 2 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 1420 and 1422 is 2.

GCF(1420,1422) = 2

GCF of 1420 and 1422

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

GCF of:
and

Greatest Common Factor of 1420 and 1422

GCF of 1420 and 1422 is 2

Prime Factorization of 1420


2 1420
2 710
5 355
71 71
1

Prime factors of 1420 are 2,5,71. Prime factorization of 1420 in exponential form is:

1420 = 22×51×711

Prime Factorization of 1422


2 1422
3 711
3 237
79 79
1

Prime factors of 1422 are 2,3,79. Prime factorization of 1422 in exponential form is:

1422 = 21×32×791

∴ So by taking common prime factors GCF of 1420 and 1422 is 2

Greatest Common Factor of 1420 and 1422 by matching factors method

Factors of 1420

List of positive integer factors of 1420 that divides 1420 without a remainder.

1,2,4,5,10,20,71,142,284,355,710,1420

Factors of 1422

List of positive integer factors of 1422 that divides 1422 without a remainder.

1,2,3,6,9,18,79,158,237,474,711,1422

Greatest Common Factor

We found the factors and prime factorization of 1420 and 1422. The biggest common factor number is the GCF number.
So the greatest common factor 1420 and 1422 is 2.

Also check out the Least Common Multiple of 1420 and 1422

Properties of GCF 1420 and 1422

(i) The GCF of 1420 and 1422 is associative

GCF of 1420 and 1422 = GCF of 1422 and 1420

Related Greatest Common Factor of 1420

Related Greatest Common Factor of 1422

Frequently Asked Questions on GCF of 1420 and 1422

1. What is the GCF of 1420 and 1422?

Answer: GCF of 1420 and 1422 is 2.

2. What are the Factors of 1420?

Answer: Factors of 1420 are 1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420. There are 12 integers that are factors of 1420. The greatest factor of 1420 is 1420.

3. What are the Factors of 1422?

Answer: Factors of 1422 are 1, 2, 3, 6, 9, 18, 79, 158, 237, 474, 711, 1422. There are 12 integers that are factors of 1422. The greatest factor of 1422 is 1422.

4. How to Find the GCF of 1420 and 1422?

Answer:

Greatest Common Factor of 1420 and 1422 = 2

Step 1: Find the prime factorization of 1420

1420 = 2 x 2 x 5 x 71

Step 2: Find the prime factorization of 1422

1422 = 2 x 3 x 3 x 79

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

GCF = 2

Step 4: Therefore, the greatest common factor of 1420 and 1422 is 2