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 384, 387 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 384 and 387 is 3.
GCF(384,387) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 384
2 | 384 |
2 | 192 |
2 | 96 |
2 | 48 |
2 | 24 |
2 | 12 |
2 | 6 |
3 | 3 |
1 |
Prime factors of 384 are 2,3. Prime factorization of 384 in exponential form is:
384 = 27×31
Prime Factorization of 387
3 | 387 |
3 | 129 |
43 | 43 |
1 |
Prime factors of 387 are 3,43. Prime factorization of 387 in exponential form is:
387 = 32×431
∴ So by taking common prime factors GCF of 384 and 387 is 3
Factors of 384
List of positive integer factors of 384 that divides 384 without a remainder.
1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,384
Factors of 387
List of positive integer factors of 387 that divides 387 without a remainder.
1,3,9,43,129,387
Greatest Common Factor
We found the factors and prime factorization of 384 and 387. The biggest common factor number is the GCF number.
So the greatest common factor 384 and 387 is 3.
Also check out the Least Common Multiple of 384 and 387
(i) The GCF of 384 and 387 is associative
GCF of 384 and 387 = GCF of 387 and 384
1. What is the GCF of 384 and 387?
Answer: GCF of 384 and 387 is 3.
2. What are the Factors of 384?
Answer: Factors of 384 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384. There are 16 integers that are factors of 384. The greatest factor of 384 is 384.
3. What are the Factors of 387?
Answer: Factors of 387 are 1, 3, 9, 43, 129, 387. There are 6 integers that are factors of 387. The greatest factor of 387 is 387.
4. How to Find the GCF of 384 and 387?
Answer:
Greatest Common Factor of 384 and 387 = 3
Step 1: Find the prime factorization of 384
384 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3
Step 2: Find the prime factorization of 387
387 = 3 x 3 x 43
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 384 and 387 is 3