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 1284, 1289 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1284 and 1289 is 1.
GCF(1284,1289) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
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
Prime Factorization of 1289
1289 | 1289 |
1 |
Prime factors of 1289 are 1289. Prime factorization of 1289 in exponential form is:
1289 = 12891
∴ So by taking common prime factors GCF of 1284 and 1289 is 1
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
Factors of 1289
List of positive integer factors of 1289 that divides 1289 without a remainder.
1,1289
Greatest Common Factor
We found the factors and prime factorization of 1284 and 1289. The biggest common factor number is the GCF number.
So the greatest common factor 1284 and 1289 is 1.
Also check out the Least Common Multiple of 1284 and 1289
(i) The GCF of 1284 and 1289 is associative
GCF of 1284 and 1289 = GCF of 1289 and 1284
1. What is the GCF of 1284 and 1289?
Answer: GCF of 1284 and 1289 is 1.
2. 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.
3. What are the Factors of 1289?
Answer: Factors of 1289 are 1, 1289. There are 2 integers that are factors of 1289. The greatest factor of 1289 is 1289.
4. How to Find the GCF of 1284 and 1289?
Answer:
Greatest Common Factor of 1284 and 1289 = 1
Step 1: Find the prime factorization of 1284
1284 = 2 x 2 x 3 x 107
Step 2: Find the prime factorization of 1289
1289 = 1289
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 1284 and 1289 is 1