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 387, 394 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 387 and 394 is 1.
GCF(387,394) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
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
Prime Factorization of 394
2 | 394 |
197 | 197 |
1 |
Prime factors of 394 are 2,197. Prime factorization of 394 in exponential form is:
394 = 21×1971
∴ So by taking common prime factors GCF of 387 and 394 is 1
Factors of 387
List of positive integer factors of 387 that divides 387 without a remainder.
1,3,9,43,129,387
Factors of 394
List of positive integer factors of 394 that divides 394 without a remainder.
1,2,197,394
Greatest Common Factor
We found the factors and prime factorization of 387 and 394. The biggest common factor number is the GCF number.
So the greatest common factor 387 and 394 is 1.
Also check out the Least Common Multiple of 387 and 394
(i) The GCF of 387 and 394 is associative
GCF of 387 and 394 = GCF of 394 and 387
1. What is the GCF of 387 and 394?
Answer: GCF of 387 and 394 is 1.
2. 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.
3. What are the Factors of 394?
Answer: Factors of 394 are 1, 2, 197, 394. There are 4 integers that are factors of 394. The greatest factor of 394 is 394.
4. How to Find the GCF of 387 and 394?
Answer:
Greatest Common Factor of 387 and 394 = 1
Step 1: Find the prime factorization of 387
387 = 3 x 3 x 43
Step 2: Find the prime factorization of 394
394 = 2 x 197
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 387 and 394 is 1