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 380, 387 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 380 and 387 is 1.
GCF(380,387) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 380
2 | 380 |
2 | 190 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 380 are 2,5,19. Prime factorization of 380 in exponential form is:
380 = 22×51×191
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 380 and 387 is 1
Factors of 380
List of positive integer factors of 380 that divides 380 without a remainder.
1,2,4,5,10,19,20,38,76,95,190,380
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 380 and 387. The biggest common factor number is the GCF number.
So the greatest common factor 380 and 387 is 1.
Also check out the Least Common Multiple of 380 and 387
(i) The GCF of 380 and 387 is associative
GCF of 380 and 387 = GCF of 387 and 380
1. What is the GCF of 380 and 387?
Answer: GCF of 380 and 387 is 1.
2. What are the Factors of 380?
Answer: Factors of 380 are 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380. There are 12 integers that are factors of 380. The greatest factor of 380 is 380.
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 380 and 387?
Answer:
Greatest Common Factor of 380 and 387 = 1
Step 1: Find the prime factorization of 380
380 = 2 x 2 x 5 x 19
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 = = 1
Step 4: Therefore, the greatest common factor of 380 and 387 is 1