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 1288, 1292 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1288 and 1292 is 4.
GCF(1288,1292) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1288
2 | 1288 |
2 | 644 |
2 | 322 |
7 | 161 |
23 | 23 |
1 |
Prime factors of 1288 are 2,7,23. Prime factorization of 1288 in exponential form is:
1288 = 23×71×231
Prime Factorization of 1292
2 | 1292 |
2 | 646 |
17 | 323 |
19 | 19 |
1 |
Prime factors of 1292 are 2,17,19. Prime factorization of 1292 in exponential form is:
1292 = 22×171×191
∴ So by taking common prime factors GCF of 1288 and 1292 is 4
Factors of 1288
List of positive integer factors of 1288 that divides 1288 without a remainder.
1,2,4,7,8,14,23,28,46,56,92,161,184,322,644,1288
Factors of 1292
List of positive integer factors of 1292 that divides 1292 without a remainder.
1,2,4,17,19,34,38,68,76,323,646,1292
Greatest Common Factor
We found the factors and prime factorization of 1288 and 1292. The biggest common factor number is the GCF number.
So the greatest common factor 1288 and 1292 is 4.
Also check out the Least Common Multiple of 1288 and 1292
(i) The GCF of 1288 and 1292 is associative
GCF of 1288 and 1292 = GCF of 1292 and 1288
1. What is the GCF of 1288 and 1292?
Answer: GCF of 1288 and 1292 is 4.
2. What are the Factors of 1288?
Answer: Factors of 1288 are 1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288. There are 16 integers that are factors of 1288. The greatest factor of 1288 is 1288.
3. What are the Factors of 1292?
Answer: Factors of 1292 are 1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292. There are 12 integers that are factors of 1292. The greatest factor of 1292 is 1292.
4. How to Find the GCF of 1288 and 1292?
Answer:
Greatest Common Factor of 1288 and 1292 = 4
Step 1: Find the prime factorization of 1288
1288 = 2 x 2 x 2 x 7 x 23
Step 2: Find the prime factorization of 1292
1292 = 2 x 2 x 17 x 19
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 1288 and 1292 is 4