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 395, 402 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 395 and 402 is 1.
GCF(395,402) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 395
5 | 395 |
79 | 79 |
1 |
Prime factors of 395 are 5,79. Prime factorization of 395 in exponential form is:
395 = 51×791
Prime Factorization of 402
2 | 402 |
3 | 201 |
67 | 67 |
1 |
Prime factors of 402 are 2,3,67. Prime factorization of 402 in exponential form is:
402 = 21×31×671
∴ So by taking common prime factors GCF of 395 and 402 is 1
Factors of 395
List of positive integer factors of 395 that divides 395 without a remainder.
1,5,79,395
Factors of 402
List of positive integer factors of 402 that divides 402 without a remainder.
1,2,3,6,67,134,201,402
Greatest Common Factor
We found the factors and prime factorization of 395 and 402. The biggest common factor number is the GCF number.
So the greatest common factor 395 and 402 is 1.
Also check out the Least Common Multiple of 395 and 402
(i) The GCF of 395 and 402 is associative
GCF of 395 and 402 = GCF of 402 and 395
1. What is the GCF of 395 and 402?
Answer: GCF of 395 and 402 is 1.
2. What are the Factors of 395?
Answer: Factors of 395 are 1, 5, 79, 395. There are 4 integers that are factors of 395. The greatest factor of 395 is 395.
3. What are the Factors of 402?
Answer: Factors of 402 are 1, 2, 3, 6, 67, 134, 201, 402. There are 8 integers that are factors of 402. The greatest factor of 402 is 402.
4. How to Find the GCF of 395 and 402?
Answer:
Greatest Common Factor of 395 and 402 = 1
Step 1: Find the prime factorization of 395
395 = 5 x 79
Step 2: Find the prime factorization of 402
402 = 2 x 3 x 67
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 395 and 402 is 1