GCF for 51 and 68

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 51 and 68?

Answer: GCF of 51 and 68 is 17

(Seventeen)

Finding GCF for 51 and 68 using all factors (divisors) listing

The first method to find GCF for numbers 51 and 68 is to list all factors for both numbers and pick the highest common one:

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

All factors of 68: 1, 2, 4, 17, 34, 68

So the Greatest Common Factor for 51 and 68 is 17

Finding GCF for 51 and 68 by Prime Factorization

The second method to find GCF for numbers 51 and 68 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 51: 3, 17

All Prime Factors of 68: 2, 2, 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 51 and 68

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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 51 and 68? (The answer is: 17). Select the first number (e.g. '51') and the second number (e.g. '68'). 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

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

GCF Table

Number 1Number 2GCF
36684
37681
38682
39681
40684
41681
42682
43681
44684
45681
46682
47681
48684
49681
50682
516817
52684
53681
54682
55681
56684
57681
58682
59681
60684
61681
62682
63681
64684
65681

FAQ

What is the Greatest common Divisor of 51 and 68?

GCF of 51 and 68 is 17

See Also