Greatest Common Factor of 145 and 153

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 145, 153 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 145 and 153 is 1.

GCF(145,153) = 1

GCF of 145 and 153

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

GCF of:
and

Greatest Common Factor of 145 and 153

GCF of 145 and 153 is 1

Prime Factorization of 145


5 145
29 29
1

Prime factors of 145 are 5,29. Prime factorization of 145 in exponential form is:

145 = 51×291

Prime Factorization of 153


3 153
3 51
17 17
1

Prime factors of 153 are 3,17. Prime factorization of 153 in exponential form is:

153 = 32×171

∴ So by taking common prime factors GCF of 145 and 153 is 1

Greatest Common Factor of 145 and 153 by matching factors method

Factors of 145

List of positive integer factors of 145 that divides 145 without a remainder.

1,5,29,145

Factors of 153

List of positive integer factors of 153 that divides 153 without a remainder.

1,3,9,17,51,153

Greatest Common Factor

We found the factors and prime factorization of 145 and 153. The biggest common factor number is the GCF number.
So the greatest common factor 145 and 153 is 1.

Also check out the Least Common Multiple of 145 and 153

Properties of GCF 145 and 153

(i) The GCF of 145 and 153 is associative

GCF of 145 and 153 = GCF of 153 and 145

Related Greatest Common Factor of 145

Related Greatest Common Factor of 153

Frequently Asked Questions on GCF of 145 and 153

1. What is the GCF of 145 and 153?

Answer: GCF of 145 and 153 is 1.

2. What are the Factors of 145?

Answer: Factors of 145 are 1, 5, 29, 145. There are 4 integers that are factors of 145. The greatest factor of 145 is 145.

3. What are the Factors of 153?

Answer: Factors of 153 are 1, 3, 9, 17, 51, 153. There are 6 integers that are factors of 153. The greatest factor of 153 is 153.

4. How to Find the GCF of 145 and 153?

Answer:

Greatest Common Factor of 145 and 153 = 1

Step 1: Find the prime factorization of 145

145 = 5 x 29

Step 2: Find the prime factorization of 153

153 = 3 x 3 x 17

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 145 and 153 is 1