Greatest Common Factor of 1280 and 1284

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 1280, 1284 i.e. 4 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 1280 and 1284 is 4.

GCF(1280,1284) = 4

GCF of 1280 and 1284

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

GCF of:
and

Greatest Common Factor of 1280 and 1284

GCF of 1280 and 1284 is 4

Prime Factorization of 1280


2 1280
2 640
2 320
2 160
2 80
2 40
2 20
2 10
5 5
1

Prime factors of 1280 are 2,5. Prime factorization of 1280 in exponential form is:

1280 = 28×51

Prime Factorization of 1284


2 1284
2 642
3 321
107 107
1

Prime factors of 1284 are 2,3,107. Prime factorization of 1284 in exponential form is:

1284 = 22×31×1071

∴ So by taking common prime factors GCF of 1280 and 1284 is 4

Greatest Common Factor of 1280 and 1284 by matching factors method

Factors of 1280

List of positive integer factors of 1280 that divides 1280 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,128,160,256,320,640,1280

Factors of 1284

List of positive integer factors of 1284 that divides 1284 without a remainder.

1,2,3,4,6,12,107,214,321,428,642,1284

Greatest Common Factor

We found the factors and prime factorization of 1280 and 1284. The biggest common factor number is the GCF number.
So the greatest common factor 1280 and 1284 is 4.

Also check out the Least Common Multiple of 1280 and 1284

Properties of GCF 1280 and 1284

(i) The GCF of 1280 and 1284 is associative

GCF of 1280 and 1284 = GCF of 1284 and 1280

Related Greatest Common Factor of 1280

Related Greatest Common Factor of 1284

Frequently Asked Questions on GCF of 1280 and 1284

1. What is the GCF of 1280 and 1284?

Answer: GCF of 1280 and 1284 is 4.

2. What are the Factors of 1280?

Answer: Factors of 1280 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280. There are 18 integers that are factors of 1280. The greatest factor of 1280 is 1280.

3. What are the Factors of 1284?

Answer: Factors of 1284 are 1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284. There are 12 integers that are factors of 1284. The greatest factor of 1284 is 1284.

4. How to Find the GCF of 1280 and 1284?

Answer:

Greatest Common Factor of 1280 and 1284 = 4

Step 1: Find the prime factorization of 1280

1280 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

Step 2: Find the prime factorization of 1284

1284 = 2 x 2 x 3 x 107

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

GCF = 2 x 2 = 4

Step 4: Therefore, the greatest common factor of 1280 and 1284 is 4