# Greatest Common Factor of 34 and 45

Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 34, 45 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 34 and 45 is 1.

GCF(34,45) = 1

## GCF of 34 and 45

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

GCF of:
and

### Greatest Common Factor of 34 and 45 by Prime factorization method

Prime Factorization of 34

 2 34 17 17 1

Prime factors of 34 are 2,17. Prime factorization of 34 in exponential form is:

34 = 21×171

Prime Factorization of 45

 3 45 3 15 5 5 1

Prime factors of 45 are 3,5. Prime factorization of 45 in exponential form is:

45 = 32×51

∴ So by taking common prime factors GCF of 34 and 45 is 1

### Greatest Common Factor of 34 and 45 by matching factors method

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Greatest Common Factor

We found the factors and prime factorization of 34 and 45. The biggest common factor number is the GCF number.
So the greatest common factor 34 and 45 is 1.

Also check out the Least Common Multiple of 34 and 45

### Properties of GCF 34 and 45

(i) The GCF of 34 and 45 is associative

GCF of 34 and 45 = GCF of 45 and 34

### Frequently Asked Questions on GCF of 34 and 45

1. What is the GCF of 34 and 45?

Answer: GCF of 34 and 45 is 1.

2. What are the Factors of 34?

Answer: Factors of 34 are 1, 2, 17, 34. There are 4 integers that are factors of 34. The greatest factor of 34 is 34.

3. What are the Factors of 45?

Answer: Factors of 45 are 1, 3, 5, 9, 15, 45. There are 6 integers that are factors of 45. The greatest factor of 45 is 45.

4. How to Find the GCF of 34 and 45?

Greatest Common Factor of 34 and 45 = 1

Step 1: Find the prime factorization of 34

34 = 2 x 17

Step 2: Find the prime factorization of 45

45 = 3 x 3 x 5

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 34 and 45 is 1