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 1276, 1284 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1276 and 1284 is 4.
GCF(1276,1284) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1276
2 | 1276 |
2 | 638 |
11 | 319 |
29 | 29 |
1 |
Prime factors of 1276 are 2,11,29. Prime factorization of 1276 in exponential form is:
1276 = 22×111×291
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 1276 and 1284 is 4
Factors of 1276
List of positive integer factors of 1276 that divides 1276 without a remainder.
1,2,4,11,22,29,44,58,116,319,638,1276
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 1276 and 1284. The biggest common factor number is the GCF number.
So the greatest common factor 1276 and 1284 is 4.
Also check out the Least Common Multiple of 1276 and 1284
(i) The GCF of 1276 and 1284 is associative
GCF of 1276 and 1284 = GCF of 1284 and 1276
1. What is the GCF of 1276 and 1284?
Answer: GCF of 1276 and 1284 is 4.
2. What are the Factors of 1276?
Answer: Factors of 1276 are 1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 638, 1276. There are 12 integers that are factors of 1276. The greatest factor of 1276 is 1276.
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 1276 and 1284?
Answer:
Greatest Common Factor of 1276 and 1284 = 4
Step 1: Find the prime factorization of 1276
1276 = 2 x 2 x 11 x 29
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 1276 and 1284 is 4