GCF for 34 and 51

What is the Greatest common Divisor of 34 and 51?

Answer: GCF of 34 and 51 is 17

(Seventeen)

Finding GCF for 34 and 51 using all factors (divisors) listing

The first method to find GCF for numbers 34 and 51 is to list all factors for both numbers and pick the highest common one:

All factors of 34: 1, 2, 17, 34

All factors of 51: 1, 3, 17, 51

So the Greatest Common Factor for 34 and 51 is 17

Finding GCF for 34 and 51 by Prime Factorization

The second method to find GCF for numbers 34 and 51 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 34: 2, 17

All Prime Factors of 51: 3, 17

As we can see there is only one Prime Factor common to both numbers. It is 17

So 17 is the Greatest Common Factor of 34 and 51

GCF Table

Number 1Number 2GCF
19511
20511
2151
22511
23511
24513
25511
26511
27513
28511
29511
30513
31511
32511
33513
3451
35511
36513
37511
38511
39513
40511
41511
42513
43511
44511
45513
46511
47511
48513

About "Greatest Common Factor" Calculator

This calculator will help you find the greatest common factor (GCF) of two numbers. For example, it can help you find out what is the Greatest common Divisor of 34 and 51? (The answer is: 17). Select the first number (e.g. '34') and the second number (e.g. '51'). After that hit the 'Calculate' button.
Greatest Common Factor (GCF) also known as the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) - it is the largest positive integer that divides each of the integers with zero remainder

FAQ

What is the Greatest common Divisor of 34 and 51?

GCF of 34 and 51 is 17