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 308415, 308420 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 308415 and 308420 is 5.
GCF(308415,308420) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 308415
3 | 308415 |
5 | 102805 |
29 | 20561 |
709 | 709 |
1 |
Prime factors of 308415 are 3,5,29,709. Prime factorization of 308415 in exponential form is:
308415 = 31×51×291×7091
Prime Factorization of 308420
2 | 308420 |
2 | 154210 |
5 | 77105 |
7 | 15421 |
2203 | 2203 |
1 |
Prime factors of 308420 are 2,5,7,2203. Prime factorization of 308420 in exponential form is:
308420 = 22×51×71×22031
∴ So by taking common prime factors GCF of 308415 and 308420 is 5
Factors of 308415
List of positive integer factors of 308415 that divides 308415 without a remainder.
1,3,5,15,29,87,145,435,709,2127,3545,10635,20561,61683,102805,308415
Factors of 308420
List of positive integer factors of 308420 that divides 308420 without a remainder.
1,2,4,5,7,10,14,20,28,35,70,140,2203,4406,8812,11015,15421,22030,30842,44060,61684,77105,154210,308420
Greatest Common Factor
We found the factors and prime factorization of 308415 and 308420. The biggest common factor number is the GCF number.
So the greatest common factor 308415 and 308420 is 5.
Also check out the Least Common Multiple of 308415 and 308420
(i) The GCF of 308415 and 308420 is associative
GCF of 308415 and 308420 = GCF of 308420 and 308415
1. What is the GCF of 308415 and 308420?
Answer: GCF of 308415 and 308420 is 5.
2. What are the Factors of 308415?
Answer: Factors of 308415 are 1, 3, 5, 15, 29, 87, 145, 435, 709, 2127, 3545, 10635, 20561, 61683, 102805, 308415. There are 16 integers that are factors of 308415. The greatest factor of 308415 is 308415.
3. What are the Factors of 308420?
Answer: Factors of 308420 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2203, 4406, 8812, 11015, 15421, 22030, 30842, 44060, 61684, 77105, 154210, 308420. There are 24 integers that are factors of 308420. The greatest factor of 308420 is 308420.
4. How to Find the GCF of 308415 and 308420?
Answer:
Greatest Common Factor of 308415 and 308420 = 5
Step 1: Find the prime factorization of 308415
308415 = 3 x 5 x 29 x 709
Step 2: Find the prime factorization of 308420
308420 = 2 x 2 x 5 x 7 x 2203
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 308415 and 308420 is 5