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 1807, 1815 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1807 and 1815 is 1.
GCF(1807,1815) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1807
13 | 1807 |
139 | 139 |
1 |
Prime factors of 1807 are 13,139. Prime factorization of 1807 in exponential form is:
1807 = 131×1391
Prime Factorization of 1815
3 | 1815 |
5 | 605 |
11 | 121 |
11 | 11 |
1 |
Prime factors of 1815 are 3,5,11. Prime factorization of 1815 in exponential form is:
1815 = 31×51×112
∴ So by taking common prime factors GCF of 1807 and 1815 is 1
Factors of 1807
List of positive integer factors of 1807 that divides 1807 without a remainder.
1,13,139,1807
Factors of 1815
List of positive integer factors of 1815 that divides 1815 without a remainder.
1,3,5,11,15,33,55,121,165,363,605,1815
Greatest Common Factor
We found the factors and prime factorization of 1807 and 1815. The biggest common factor number is the GCF number.
So the greatest common factor 1807 and 1815 is 1.
Also check out the Least Common Multiple of 1807 and 1815
(i) The GCF of 1807 and 1815 is associative
GCF of 1807 and 1815 = GCF of 1815 and 1807
1. What is the GCF of 1807 and 1815?
Answer: GCF of 1807 and 1815 is 1.
2. What are the Factors of 1807?
Answer: Factors of 1807 are 1, 13, 139, 1807. There are 4 integers that are factors of 1807. The greatest factor of 1807 is 1807.
3. What are the Factors of 1815?
Answer: Factors of 1815 are 1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815. There are 12 integers that are factors of 1815. The greatest factor of 1815 is 1815.
4. How to Find the GCF of 1807 and 1815?
Answer:
Greatest Common Factor of 1807 and 1815 = 1
Step 1: Find the prime factorization of 1807
1807 = 13 x 139
Step 2: Find the prime factorization of 1815
1815 = 3 x 5 x 11 x 11
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 1807 and 1815 is 1