GCF for 51 and 170

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 51 and 170?

Answer: GCF of 51 and 170 is 17

(Seventeen)

Finding GCF for 51 and 170 using all factors (divisors) listing

The first method to find GCF for numbers 51 and 170 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 170: 1, 2, 5, 10, 17, 34, 85, 170

So the Greatest Common Factor for 51 and 170 is 17

Finding GCF for 51 and 170 by Prime Factorization

The second method to find GCF for numbers 51 and 170 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 170: 2, 5, 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 170

See Also

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 170? (The answer is: 17). Select the first number (e.g. '51') and the second number (e.g. '170'). 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
361702
371701
381702
391701
4017010
411701
421702
431701
441702
451705
461702
471701
481702
491701
5017010
5117017
521702
531701
541702
551705
561702
571701
581702
591701
6017010
611701
621702
631701
641702
651705

FAQ

What is the Greatest common Divisor of 51 and 170?

GCF of 51 and 170 is 17

See Also