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 408, 416 i.e. 8 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 408 and 416 is 8.
GCF(408,416) = 8
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
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
Prime Factorization of 416
2 | 416 |
2 | 208 |
2 | 104 |
2 | 52 |
2 | 26 |
13 | 13 |
1 |
Prime factors of 416 are 2,13. Prime factorization of 416 in exponential form is:
416 = 25×131
∴ So by taking common prime factors GCF of 408 and 416 is 8
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
Factors of 416
List of positive integer factors of 416 that divides 416 without a remainder.
1,2,4,8,13,16,26,32,52,104,208,416
Greatest Common Factor
We found the factors and prime factorization of 408 and 416. The biggest common factor number is the GCF number.
So the greatest common factor 408 and 416 is 8.
Also check out the Least Common Multiple of 408 and 416
(i) The GCF of 408 and 416 is associative
GCF of 408 and 416 = GCF of 416 and 408
1. What is the GCF of 408 and 416?
Answer: GCF of 408 and 416 is 8.
2. 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.
3. What are the Factors of 416?
Answer: Factors of 416 are 1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416. There are 12 integers that are factors of 416. The greatest factor of 416 is 416.
4. How to Find the GCF of 408 and 416?
Answer:
Greatest Common Factor of 408 and 416 = 8
Step 1: Find the prime factorization of 408
408 = 2 x 2 x 2 x 3 x 17
Step 2: Find the prime factorization of 416
416 = 2 x 2 x 2 x 2 x 2 x 13
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 2 x 2 = 8
Step 4: Therefore, the greatest common factor of 408 and 416 is 8