Greatest Common Factor of 171 and 178

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 171, 178 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 171 and 178 is 1.

GCF(171,178) = 1

GCF of 171 and 178

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

GCF of:
and

Greatest Common Factor of 171 and 178

GCF of 171 and 178 is 1

Prime Factorization of 171


3 171
3 57
19 19
1

Prime factors of 171 are 3,19. Prime factorization of 171 in exponential form is:

171 = 32×191

Prime Factorization of 178


2 178
89 89
1

Prime factors of 178 are 2,89. Prime factorization of 178 in exponential form is:

178 = 21×891

∴ So by taking common prime factors GCF of 171 and 178 is 1

Greatest Common Factor of 171 and 178 by matching factors method

Factors of 171

List of positive integer factors of 171 that divides 171 without a remainder.

1,3,9,19,57,171

Factors of 178

List of positive integer factors of 178 that divides 178 without a remainder.

1,2,89,178

Greatest Common Factor

We found the factors and prime factorization of 171 and 178. The biggest common factor number is the GCF number.
So the greatest common factor 171 and 178 is 1.

Also check out the Least Common Multiple of 171 and 178

Properties of GCF 171 and 178

(i) The GCF of 171 and 178 is associative

GCF of 171 and 178 = GCF of 178 and 171

Related Greatest Common Factor of 171

Related Greatest Common Factor of 178

Frequently Asked Questions on GCF of 171 and 178

1. What is the GCF of 171 and 178?

Answer: GCF of 171 and 178 is 1.

2. What are the Factors of 171?

Answer: Factors of 171 are 1, 3, 9, 19, 57, 171. There are 6 integers that are factors of 171. The greatest factor of 171 is 171.

3. What are the Factors of 178?

Answer: Factors of 178 are 1, 2, 89, 178. There are 4 integers that are factors of 178. The greatest factor of 178 is 178.

4. How to Find the GCF of 171 and 178?

Answer:

Greatest Common Factor of 171 and 178 = 1

Step 1: Find the prime factorization of 171

171 = 3 x 3 x 19

Step 2: Find the prime factorization of 178

178 = 2 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 171 and 178 is 1