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 1265, 1272 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1265 and 1272 is 1.
GCF(1265,1272) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1265
5 | 1265 |
11 | 253 |
23 | 23 |
1 |
Prime factors of 1265 are 5,11,23. Prime factorization of 1265 in exponential form is:
1265 = 51×111×231
Prime Factorization of 1272
2 | 1272 |
2 | 636 |
2 | 318 |
3 | 159 |
53 | 53 |
1 |
Prime factors of 1272 are 2,3,53. Prime factorization of 1272 in exponential form is:
1272 = 23×31×531
∴ So by taking common prime factors GCF of 1265 and 1272 is 1
Factors of 1265
List of positive integer factors of 1265 that divides 1265 without a remainder.
1,5,11,23,55,115,253,1265
Factors of 1272
List of positive integer factors of 1272 that divides 1272 without a remainder.
1,2,3,4,6,8,12,24,53,106,159,212,318,424,636,1272
Greatest Common Factor
We found the factors and prime factorization of 1265 and 1272. The biggest common factor number is the GCF number.
So the greatest common factor 1265 and 1272 is 1.
Also check out the Least Common Multiple of 1265 and 1272
(i) The GCF of 1265 and 1272 is associative
GCF of 1265 and 1272 = GCF of 1272 and 1265
1. What is the GCF of 1265 and 1272?
Answer: GCF of 1265 and 1272 is 1.
2. What are the Factors of 1265?
Answer: Factors of 1265 are 1, 5, 11, 23, 55, 115, 253, 1265. There are 8 integers that are factors of 1265. The greatest factor of 1265 is 1265.
3. What are the Factors of 1272?
Answer: Factors of 1272 are 1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272. There are 16 integers that are factors of 1272. The greatest factor of 1272 is 1272.
4. How to Find the GCF of 1265 and 1272?
Answer:
Greatest Common Factor of 1265 and 1272 = 1
Step 1: Find the prime factorization of 1265
1265 = 5 x 11 x 23
Step 2: Find the prime factorization of 1272
1272 = 2 x 2 x 2 x 3 x 53
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 1265 and 1272 is 1