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 989, 997 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 989 and 997 is 1.
GCF(989,997) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 989
23 | 989 |
43 | 43 |
1 |
Prime factors of 989 are 23,43. Prime factorization of 989 in exponential form is:
989 = 231×431
Prime Factorization of 997
997 | 997 |
1 |
Prime factors of 997 are 997. Prime factorization of 997 in exponential form is:
997 = 9971
∴ So by taking common prime factors GCF of 989 and 997 is 1
Factors of 989
List of positive integer factors of 989 that divides 989 without a remainder.
1,23,43,989
Factors of 997
List of positive integer factors of 997 that divides 997 without a remainder.
1,997
Greatest Common Factor
We found the factors and prime factorization of 989 and 997. The biggest common factor number is the GCF number.
So the greatest common factor 989 and 997 is 1.
Also check out the Least Common Multiple of 989 and 997
(i) The GCF of 989 and 997 is associative
GCF of 989 and 997 = GCF of 997 and 989
1. What is the GCF of 989 and 997?
Answer: GCF of 989 and 997 is 1.
2. What are the Factors of 989?
Answer: Factors of 989 are 1, 23, 43, 989. There are 4 integers that are factors of 989. The greatest factor of 989 is 989.
3. What are the Factors of 997?
Answer: Factors of 997 are 1, 997. There are 2 integers that are factors of 997. The greatest factor of 997 is 997.
4. How to Find the GCF of 989 and 997?
Answer:
Greatest Common Factor of 989 and 997 = 1
Step 1: Find the prime factorization of 989
989 = 23 x 43
Step 2: Find the prime factorization of 997
997 = 997
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 989 and 997 is 1