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 987, 992 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 987 and 992 is 1.
GCF(987,992) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 987
3 | 987 |
7 | 329 |
47 | 47 |
1 |
Prime factors of 987 are 3,7,47. Prime factorization of 987 in exponential form is:
987 = 31×71×471
Prime Factorization of 992
2 | 992 |
2 | 496 |
2 | 248 |
2 | 124 |
2 | 62 |
31 | 31 |
1 |
Prime factors of 992 are 2,31. Prime factorization of 992 in exponential form is:
992 = 25×311
∴ So by taking common prime factors GCF of 987 and 992 is 1
Factors of 987
List of positive integer factors of 987 that divides 987 without a remainder.
1,3,7,21,47,141,329,987
Factors of 992
List of positive integer factors of 992 that divides 992 without a remainder.
1,2,4,8,16,31,32,62,124,248,496,992
Greatest Common Factor
We found the factors and prime factorization of 987 and 992. The biggest common factor number is the GCF number.
So the greatest common factor 987 and 992 is 1.
Also check out the Least Common Multiple of 987 and 992
(i) The GCF of 987 and 992 is associative
GCF of 987 and 992 = GCF of 992 and 987
1. What is the GCF of 987 and 992?
Answer: GCF of 987 and 992 is 1.
2. What are the Factors of 987?
Answer: Factors of 987 are 1, 3, 7, 21, 47, 141, 329, 987. There are 8 integers that are factors of 987. The greatest factor of 987 is 987.
3. What are the Factors of 992?
Answer: Factors of 992 are 1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992. There are 12 integers that are factors of 992. The greatest factor of 992 is 992.
4. How to Find the GCF of 987 and 992?
Answer:
Greatest Common Factor of 987 and 992 = 1
Step 1: Find the prime factorization of 987
987 = 3 x 7 x 47
Step 2: Find the prime factorization of 992
992 = 2 x 2 x 2 x 2 x 2 x 31
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 987 and 992 is 1