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 7980, 7988 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7980 and 7988 is 4.
GCF(7980,7988) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7980
2 | 7980 |
2 | 3990 |
3 | 1995 |
5 | 665 |
7 | 133 |
19 | 19 |
1 |
Prime factors of 7980 are 2,3,5,7,19. Prime factorization of 7980 in exponential form is:
7980 = 22×31×51×71×191
Prime Factorization of 7988
2 | 7988 |
2 | 3994 |
1997 | 1997 |
1 |
Prime factors of 7988 are 2,1997. Prime factorization of 7988 in exponential form is:
7988 = 22×19971
∴ So by taking common prime factors GCF of 7980 and 7988 is 4
Factors of 7980
List of positive integer factors of 7980 that divides 7980 without a remainder.
1,2,3,4,5,6,7,10,12,14,15,19,20,21,28,30,35,38,42,57,60,70,76,84,95,105,114,133,140,190,210,228,266,285,380,399,420,532,570,665,798,1140,1330,1596,1995,2660,3990,7980
Factors of 7988
List of positive integer factors of 7988 that divides 7988 without a remainder.
1,2,4,1997,3994,7988
Greatest Common Factor
We found the factors and prime factorization of 7980 and 7988. The biggest common factor number is the GCF number.
So the greatest common factor 7980 and 7988 is 4.
Also check out the Least Common Multiple of 7980 and 7988
(i) The GCF of 7980 and 7988 is associative
GCF of 7980 and 7988 = GCF of 7988 and 7980
1. What is the GCF of 7980 and 7988?
Answer: GCF of 7980 and 7988 is 4.
2. What are the Factors of 7980?
Answer: Factors of 7980 are 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980. There are 48 integers that are factors of 7980. The greatest factor of 7980 is 7980.
3. What are the Factors of 7988?
Answer: Factors of 7988 are 1, 2, 4, 1997, 3994, 7988. There are 6 integers that are factors of 7988. The greatest factor of 7988 is 7988.
4. How to Find the GCF of 7980 and 7988?
Answer:
Greatest Common Factor of 7980 and 7988 = 4
Step 1: Find the prime factorization of 7980
7980 = 2 x 2 x 3 x 5 x 7 x 19
Step 2: Find the prime factorization of 7988
7988 = 2 x 2 x 1997
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 7980 and 7988 is 4