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 315, 322 i.e. 7 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 315 and 322 is 7.
GCF(315,322) = 7
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 315
3 | 315 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 315 are 3,5,7. Prime factorization of 315 in exponential form is:
315 = 32×51×71
Prime Factorization of 322
2 | 322 |
7 | 161 |
23 | 23 |
1 |
Prime factors of 322 are 2,7,23. Prime factorization of 322 in exponential form is:
322 = 21×71×231
∴ So by taking common prime factors GCF of 315 and 322 is 7
Factors of 315
List of positive integer factors of 315 that divides 315 without a remainder.
1,3,5,7,9,15,21,35,45,63,105,315
Factors of 322
List of positive integer factors of 322 that divides 322 without a remainder.
1,2,7,14,23,46,161,322
Greatest Common Factor
We found the factors and prime factorization of 315 and 322. The biggest common factor number is the GCF number.
So the greatest common factor 315 and 322 is 7.
Also check out the Least Common Multiple of 315 and 322
(i) The GCF of 315 and 322 is associative
GCF of 315 and 322 = GCF of 322 and 315
1. What is the GCF of 315 and 322?
Answer: GCF of 315 and 322 is 7.
2. What are the Factors of 315?
Answer: Factors of 315 are 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315. There are 12 integers that are factors of 315. The greatest factor of 315 is 315.
3. What are the Factors of 322?
Answer: Factors of 322 are 1, 2, 7, 14, 23, 46, 161, 322. There are 8 integers that are factors of 322. The greatest factor of 322 is 322.
4. How to Find the GCF of 315 and 322?
Answer:
Greatest Common Factor of 315 and 322 = 7
Step 1: Find the prime factorization of 315
315 = 3 x 3 x 5 x 7
Step 2: Find the prime factorization of 322
322 = 2 x 7 x 23
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 7
Step 4: Therefore, the greatest common factor of 315 and 322 is 7