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 1900, 1908 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1900 and 1908 is 4.
GCF(1900,1908) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1900
2 | 1900 |
2 | 950 |
5 | 475 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 1900 are 2,5,19. Prime factorization of 1900 in exponential form is:
1900 = 22×52×191
Prime Factorization of 1908
2 | 1908 |
2 | 954 |
3 | 477 |
3 | 159 |
53 | 53 |
1 |
Prime factors of 1908 are 2,3,53. Prime factorization of 1908 in exponential form is:
1908 = 22×32×531
∴ So by taking common prime factors GCF of 1900 and 1908 is 4
Factors of 1900
List of positive integer factors of 1900 that divides 1900 without a remainder.
1,2,4,5,10,19,20,25,38,50,76,95,100,190,380,475,950,1900
Factors of 1908
List of positive integer factors of 1908 that divides 1908 without a remainder.
1,2,3,4,6,9,12,18,36,53,106,159,212,318,477,636,954,1908
Greatest Common Factor
We found the factors and prime factorization of 1900 and 1908. The biggest common factor number is the GCF number.
So the greatest common factor 1900 and 1908 is 4.
Also check out the Least Common Multiple of 1900 and 1908
(i) The GCF of 1900 and 1908 is associative
GCF of 1900 and 1908 = GCF of 1908 and 1900
1. What is the GCF of 1900 and 1908?
Answer: GCF of 1900 and 1908 is 4.
2. What are the Factors of 1900?
Answer: Factors of 1900 are 1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900. There are 18 integers that are factors of 1900. The greatest factor of 1900 is 1900.
3. What are the Factors of 1908?
Answer: Factors of 1908 are 1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 1908. There are 18 integers that are factors of 1908. The greatest factor of 1908 is 1908.
4. How to Find the GCF of 1900 and 1908?
Answer:
Greatest Common Factor of 1900 and 1908 = 4
Step 1: Find the prime factorization of 1900
1900 = 2 x 2 x 5 x 5 x 19
Step 2: Find the prime factorization of 1908
1908 = 2 x 2 x 3 x 3 x 53
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 2 = 4
Step 4: Therefore, the greatest common factor of 1900 and 1908 is 4