GCF for 60 and 285

What is the Greatest Common Factor of 60 and 285?

Answer: GCF of 60 and 285 is 15

(Fifteen)

Finding GCF for 60 and 285 using all factors (divisors) listing

The first method to find GCF for numbers 60 and 285 is to list all factors for both numbers and pick the highest common one:

All factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

All factors of 285: 1, 3, 5, 15, 19, 57, 95, 285

So the Greatest Common Factor for 60 and 285 is 15

Finding GCF for 60 and 285 by Prime Factorization

The second method to find GCF for numbers 60 and 285 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 60: 2, 2, 3, 5

All Prime Factors of 285: 3, 5, 19

As we can see there are Prime Factors common to both numbers: 3, 5

Now we need to multiply them to find GCF: 3 × 5 = 15

GCF Table

Number 1Number 2GCF
4528515
462851
472851
482853
492851
502855
512853
522851
532851
542853
552855
562851
5728557
582851
592851
6028515
612851
622851
632853
642851
652855
662853
672851
682851
692853
702855
712851
722853
732851
742851

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 Factor of 60 and 285? (The answer is: 15). Select the first number (e.g. '60') and the second number (e.g. '285'). 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 Factor of 60 and 285?

GCF of 60 and 285 is 15