Greatest Common Factor of 1155 and 1157

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 1155, 1157 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 1155 and 1157 is 1.

GCF(1155,1157) = 1

GCF of 1155 and 1157

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

GCF of:
and

Greatest Common Factor of 1155 and 1157

GCF of 1155 and 1157 is 1

Prime Factorization of 1155


3 1155
5 385
7 77
11 11
1

Prime factors of 1155 are 3,5,7,11. Prime factorization of 1155 in exponential form is:

1155 = 31×51×71×111

Prime Factorization of 1157


13 1157
89 89
1

Prime factors of 1157 are 13,89. Prime factorization of 1157 in exponential form is:

1157 = 131×891

∴ So by taking common prime factors GCF of 1155 and 1157 is 1

Greatest Common Factor of 1155 and 1157 by matching factors method

Factors of 1155

List of positive integer factors of 1155 that divides 1155 without a remainder.

1,3,5,7,11,15,21,33,35,55,77,105,165,231,385,1155

Factors of 1157

List of positive integer factors of 1157 that divides 1157 without a remainder.

1,13,89,1157

Greatest Common Factor

We found the factors and prime factorization of 1155 and 1157. The biggest common factor number is the GCF number.
So the greatest common factor 1155 and 1157 is 1.

Also check out the Least Common Multiple of 1155 and 1157

Properties of GCF 1155 and 1157

(i) The GCF of 1155 and 1157 is associative

GCF of 1155 and 1157 = GCF of 1157 and 1155

Related Greatest Common Factor of 1155

Related Greatest Common Factor of 1157

Frequently Asked Questions on GCF of 1155 and 1157

1. What is the GCF of 1155 and 1157?

Answer: GCF of 1155 and 1157 is 1.

2. What are the Factors of 1155?

Answer: Factors of 1155 are 1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155. There are 16 integers that are factors of 1155. The greatest factor of 1155 is 1155.

3. What are the Factors of 1157?

Answer: Factors of 1157 are 1, 13, 89, 1157. There are 4 integers that are factors of 1157. The greatest factor of 1157 is 1157.

4. How to Find the GCF of 1155 and 1157?

Answer:

Greatest Common Factor of 1155 and 1157 = 1

Step 1: Find the prime factorization of 1155

1155 = 3 x 5 x 7 x 11

Step 2: Find the prime factorization of 1157

1157 = 13 x 89

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 1155 and 1157 is 1