Greatest Common Factor of 988 and 991

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 988, 991 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 988 and 991 is 1.

GCF(988,991) = 1

GCF of 988 and 991

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 988 and 991

GCF of 988 and 991 is 1

Prime Factorization of 988


2 988
2 494
13 247
19 19
1

Prime factors of 988 are 2,13,19. Prime factorization of 988 in exponential form is:

988 = 22×131×191

Prime Factorization of 991


991 991
1

Prime factors of 991 are 991. Prime factorization of 991 in exponential form is:

991 = 9911

∴ So by taking common prime factors GCF of 988 and 991 is 1

Greatest Common Factor of 988 and 991 by matching factors method

Factors of 988

List of positive integer factors of 988 that divides 988 without a remainder.

1,2,4,13,19,26,38,52,76,247,494,988

Factors of 991

List of positive integer factors of 991 that divides 991 without a remainder.

1,991

Greatest Common Factor

We found the factors and prime factorization of 988 and 991. The biggest common factor number is the GCF number.
So the greatest common factor 988 and 991 is 1.

Also check out the Least Common Multiple of 988 and 991

Properties of GCF 988 and 991

(i) The GCF of 988 and 991 is associative

GCF of 988 and 991 = GCF of 991 and 988

Related Greatest Common Factor of 988

Related Greatest Common Factor of 991

Frequently Asked Questions on GCF of 988 and 991

1. What is the GCF of 988 and 991?

Answer: GCF of 988 and 991 is 1.

2. What are the Factors of 988?

Answer: Factors of 988 are 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988. There are 12 integers that are factors of 988. The greatest factor of 988 is 988.

3. What are the Factors of 991?

Answer: Factors of 991 are 1, 991. There are 2 integers that are factors of 991. The greatest factor of 991 is 991.

4. How to Find the GCF of 988 and 991?

Answer:

Greatest Common Factor of 988 and 991 = 1

Step 1: Find the prime factorization of 988

988 = 2 x 2 x 13 x 19

Step 2: Find the prime factorization of 991

991 = 991

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 988 and 991 is 1