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 1972, 1976 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1972 and 1976 is 4.
GCF(1972,1976) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1972
2 | 1972 |
2 | 986 |
17 | 493 |
29 | 29 |
1 |
Prime factors of 1972 are 2,17,29. Prime factorization of 1972 in exponential form is:
1972 = 22×171×291
Prime Factorization of 1976
2 | 1976 |
2 | 988 |
2 | 494 |
13 | 247 |
19 | 19 |
1 |
Prime factors of 1976 are 2,13,19. Prime factorization of 1976 in exponential form is:
1976 = 23×131×191
∴ So by taking common prime factors GCF of 1972 and 1976 is 4
Factors of 1972
List of positive integer factors of 1972 that divides 1972 without a remainder.
1,2,4,17,29,34,58,68,116,493,986,1972
Factors of 1976
List of positive integer factors of 1976 that divides 1976 without a remainder.
1,2,4,8,13,19,26,38,52,76,104,152,247,494,988,1976
Greatest Common Factor
We found the factors and prime factorization of 1972 and 1976. The biggest common factor number is the GCF number.
So the greatest common factor 1972 and 1976 is 4.
Also check out the Least Common Multiple of 1972 and 1976
(i) The GCF of 1972 and 1976 is associative
GCF of 1972 and 1976 = GCF of 1976 and 1972
1. What is the GCF of 1972 and 1976?
Answer: GCF of 1972 and 1976 is 4.
2. What are the Factors of 1972?
Answer: Factors of 1972 are 1, 2, 4, 17, 29, 34, 58, 68, 116, 493, 986, 1972. There are 12 integers that are factors of 1972. The greatest factor of 1972 is 1972.
3. What are the Factors of 1976?
Answer: Factors of 1976 are 1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976. There are 16 integers that are factors of 1976. The greatest factor of 1976 is 1976.
4. How to Find the GCF of 1972 and 1976?
Answer:
Greatest Common Factor of 1972 and 1976 = 4
Step 1: Find the prime factorization of 1972
1972 = 2 x 2 x 17 x 29
Step 2: Find the prime factorization of 1976
1976 = 2 x 2 x 2 x 13 x 19
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 1972 and 1976 is 4