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 1857, 1860 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1857 and 1860 is 3.
GCF(1857,1860) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1857
3 | 1857 |
619 | 619 |
1 |
Prime factors of 1857 are 3,619. Prime factorization of 1857 in exponential form is:
1857 = 31×6191
Prime Factorization of 1860
2 | 1860 |
2 | 930 |
3 | 465 |
5 | 155 |
31 | 31 |
1 |
Prime factors of 1860 are 2,3,5,31. Prime factorization of 1860 in exponential form is:
1860 = 22×31×51×311
∴ So by taking common prime factors GCF of 1857 and 1860 is 3
Factors of 1857
List of positive integer factors of 1857 that divides 1857 without a remainder.
1,3,619,1857
Factors of 1860
List of positive integer factors of 1860 that divides 1860 without a remainder.
1,2,3,4,5,6,10,12,15,20,30,31,60,62,93,124,155,186,310,372,465,620,930,1860
Greatest Common Factor
We found the factors and prime factorization of 1857 and 1860. The biggest common factor number is the GCF number.
So the greatest common factor 1857 and 1860 is 3.
Also check out the Least Common Multiple of 1857 and 1860
(i) The GCF of 1857 and 1860 is associative
GCF of 1857 and 1860 = GCF of 1860 and 1857
1. What is the GCF of 1857 and 1860?
Answer: GCF of 1857 and 1860 is 3.
2. What are the Factors of 1857?
Answer: Factors of 1857 are 1, 3, 619, 1857. There are 4 integers that are factors of 1857. The greatest factor of 1857 is 1857.
3. What are the Factors of 1860?
Answer: Factors of 1860 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860. There are 24 integers that are factors of 1860. The greatest factor of 1860 is 1860.
4. How to Find the GCF of 1857 and 1860?
Answer:
Greatest Common Factor of 1857 and 1860 = 3
Step 1: Find the prime factorization of 1857
1857 = 3 x 619
Step 2: Find the prime factorization of 1860
1860 = 2 x 2 x 3 x 5 x 31
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 1857 and 1860 is 3