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 407, 408 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 407 and 408 is 1.
GCF(407,408) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 407
11 | 407 |
37 | 37 |
1 |
Prime factors of 407 are 11,37. Prime factorization of 407 in exponential form is:
407 = 111×371
Prime Factorization of 408
2 | 408 |
2 | 204 |
2 | 102 |
3 | 51 |
17 | 17 |
1 |
Prime factors of 408 are 2,3,17. Prime factorization of 408 in exponential form is:
408 = 23×31×171
∴ So by taking common prime factors GCF of 407 and 408 is 1
Factors of 407
List of positive integer factors of 407 that divides 407 without a remainder.
1,11,37,407
Factors of 408
List of positive integer factors of 408 that divides 408 without a remainder.
1,2,3,4,6,8,12,17,24,34,51,68,102,136,204,408
Greatest Common Factor
We found the factors and prime factorization of 407 and 408. The biggest common factor number is the GCF number.
So the greatest common factor 407 and 408 is 1.
Also check out the Least Common Multiple of 407 and 408
(i) The GCF of 407 and 408 is associative
GCF of 407 and 408 = GCF of 408 and 407
1. What is the GCF of 407 and 408?
Answer: GCF of 407 and 408 is 1.
2. What are the Factors of 407?
Answer: Factors of 407 are 1, 11, 37, 407. There are 4 integers that are factors of 407. The greatest factor of 407 is 407.
3. What are the Factors of 408?
Answer: Factors of 408 are 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408. There are 16 integers that are factors of 408. The greatest factor of 408 is 408.
4. How to Find the GCF of 407 and 408?
Answer:
Greatest Common Factor of 407 and 408 = 1
Step 1: Find the prime factorization of 407
407 = 11 x 37
Step 2: Find the prime factorization of 408
408 = 2 x 2 x 2 x 3 x 17
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 407 and 408 is 1