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 11415, 11420 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 11415 and 11420 is 5.
GCF(11415,11420) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 11415
3 | 11415 |
5 | 3805 |
761 | 761 |
1 |
Prime factors of 11415 are 3,5,761. Prime factorization of 11415 in exponential form is:
11415 = 31×51×7611
Prime Factorization of 11420
2 | 11420 |
2 | 5710 |
5 | 2855 |
571 | 571 |
1 |
Prime factors of 11420 are 2,5,571. Prime factorization of 11420 in exponential form is:
11420 = 22×51×5711
∴ So by taking common prime factors GCF of 11415 and 11420 is 5
Factors of 11415
List of positive integer factors of 11415 that divides 11415 without a remainder.
1,3,5,15,761,2283,3805,11415
Factors of 11420
List of positive integer factors of 11420 that divides 11420 without a remainder.
1,2,4,5,10,20,571,1142,2284,2855,5710,11420
Greatest Common Factor
We found the factors and prime factorization of 11415 and 11420. The biggest common factor number is the GCF number.
So the greatest common factor 11415 and 11420 is 5.
Also check out the Least Common Multiple of 11415 and 11420
(i) The GCF of 11415 and 11420 is associative
GCF of 11415 and 11420 = GCF of 11420 and 11415
1. What is the GCF of 11415 and 11420?
Answer: GCF of 11415 and 11420 is 5.
2. What are the Factors of 11415?
Answer: Factors of 11415 are 1, 3, 5, 15, 761, 2283, 3805, 11415. There are 8 integers that are factors of 11415. The greatest factor of 11415 is 11415.
3. What are the Factors of 11420?
Answer: Factors of 11420 are 1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710, 11420. There are 12 integers that are factors of 11420. The greatest factor of 11420 is 11420.
4. How to Find the GCF of 11415 and 11420?
Answer:
Greatest Common Factor of 11415 and 11420 = 5
Step 1: Find the prime factorization of 11415
11415 = 3 x 5 x 761
Step 2: Find the prime factorization of 11420
11420 = 2 x 2 x 5 x 571
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 11415 and 11420 is 5