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 1918, 1919 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1918 and 1919 is 1.
GCF(1918,1919) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1918
2 | 1918 |
7 | 959 |
137 | 137 |
1 |
Prime factors of 1918 are 2,7,137. Prime factorization of 1918 in exponential form is:
1918 = 21×71×1371
Prime Factorization of 1919
19 | 1919 |
101 | 101 |
1 |
Prime factors of 1919 are 19,101. Prime factorization of 1919 in exponential form is:
1919 = 191×1011
∴ So by taking common prime factors GCF of 1918 and 1919 is 1
Factors of 1918
List of positive integer factors of 1918 that divides 1918 without a remainder.
1,2,7,14,137,274,959,1918
Factors of 1919
List of positive integer factors of 1919 that divides 1919 without a remainder.
1,19,101,1919
Greatest Common Factor
We found the factors and prime factorization of 1918 and 1919. The biggest common factor number is the GCF number.
So the greatest common factor 1918 and 1919 is 1.
Also check out the Least Common Multiple of 1918 and 1919
(i) The GCF of 1918 and 1919 is associative
GCF of 1918 and 1919 = GCF of 1919 and 1918
1. What is the GCF of 1918 and 1919?
Answer: GCF of 1918 and 1919 is 1.
2. What are the Factors of 1918?
Answer: Factors of 1918 are 1, 2, 7, 14, 137, 274, 959, 1918. There are 8 integers that are factors of 1918. The greatest factor of 1918 is 1918.
3. What are the Factors of 1919?
Answer: Factors of 1919 are 1, 19, 101, 1919. There are 4 integers that are factors of 1919. The greatest factor of 1919 is 1919.
4. How to Find the GCF of 1918 and 1919?
Answer:
Greatest Common Factor of 1918 and 1919 = 1
Step 1: Find the prime factorization of 1918
1918 = 2 x 7 x 137
Step 2: Find the prime factorization of 1919
1919 = 19 x 101
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 1918 and 1919 is 1