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 285, 292 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 285 and 292 is 1.
GCF(285,292) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 285
3 | 285 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 285 are 3,5,19. Prime factorization of 285 in exponential form is:
285 = 31×51×191
Prime Factorization of 292
2 | 292 |
2 | 146 |
73 | 73 |
1 |
Prime factors of 292 are 2,73. Prime factorization of 292 in exponential form is:
292 = 22×731
∴ So by taking common prime factors GCF of 285 and 292 is 1
Factors of 285
List of positive integer factors of 285 that divides 285 without a remainder.
1,3,5,15,19,57,95,285
Factors of 292
List of positive integer factors of 292 that divides 292 without a remainder.
1,2,4,73,146,292
Greatest Common Factor
We found the factors and prime factorization of 285 and 292. The biggest common factor number is the GCF number.
So the greatest common factor 285 and 292 is 1.
Also check out the Least Common Multiple of 285 and 292
(i) The GCF of 285 and 292 is associative
GCF of 285 and 292 = GCF of 292 and 285
1. What is the GCF of 285 and 292?
Answer: GCF of 285 and 292 is 1.
2. What are the Factors of 285?
Answer: Factors of 285 are 1, 3, 5, 15, 19, 57, 95, 285. There are 8 integers that are factors of 285. The greatest factor of 285 is 285.
3. What are the Factors of 292?
Answer: Factors of 292 are 1, 2, 4, 73, 146, 292. There are 6 integers that are factors of 292. The greatest factor of 292 is 292.
4. How to Find the GCF of 285 and 292?
Answer:
Greatest Common Factor of 285 and 292 = 1
Step 1: Find the prime factorization of 285
285 = 3 x 5 x 19
Step 2: Find the prime factorization of 292
292 = 2 x 2 x 73
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 285 and 292 is 1