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 1940, 1946 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1940 and 1946 is 2.
GCF(1940,1946) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1940
2 | 1940 |
2 | 970 |
5 | 485 |
97 | 97 |
1 |
Prime factors of 1940 are 2,5,97. Prime factorization of 1940 in exponential form is:
1940 = 22×51×971
Prime Factorization of 1946
2 | 1946 |
7 | 973 |
139 | 139 |
1 |
Prime factors of 1946 are 2,7,139. Prime factorization of 1946 in exponential form is:
1946 = 21×71×1391
∴ So by taking common prime factors GCF of 1940 and 1946 is 2
Factors of 1940
List of positive integer factors of 1940 that divides 1940 without a remainder.
1,2,4,5,10,20,97,194,388,485,970,1940
Factors of 1946
List of positive integer factors of 1946 that divides 1946 without a remainder.
1,2,7,14,139,278,973,1946
Greatest Common Factor
We found the factors and prime factorization of 1940 and 1946. The biggest common factor number is the GCF number.
So the greatest common factor 1940 and 1946 is 2.
Also check out the Least Common Multiple of 1940 and 1946
(i) The GCF of 1940 and 1946 is associative
GCF of 1940 and 1946 = GCF of 1946 and 1940
1. What is the GCF of 1940 and 1946?
Answer: GCF of 1940 and 1946 is 2.
2. What are the Factors of 1940?
Answer: Factors of 1940 are 1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940. There are 12 integers that are factors of 1940. The greatest factor of 1940 is 1940.
3. What are the Factors of 1946?
Answer: Factors of 1946 are 1, 2, 7, 14, 139, 278, 973, 1946. There are 8 integers that are factors of 1946. The greatest factor of 1946 is 1946.
4. How to Find the GCF of 1940 and 1946?
Answer:
Greatest Common Factor of 1940 and 1946 = 2
Step 1: Find the prime factorization of 1940
1940 = 2 x 2 x 5 x 97
Step 2: Find the prime factorization of 1946
1946 = 2 x 7 x 139
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 1940 and 1946 is 2