GCF for 63 and 117

What is the Greatest common Divisor of 63 and 117?

Answer: GCF of 63 and 117 is 9

(Nine)

Finding GCF for 63 and 117 using all factors (divisors) listing

The first method to find GCF for numbers 63 and 117 is to list all factors for both numbers and pick the highest common one:

All factors of 63: 1, 3, 7, 9, 21, 63

All factors of 117: 1, 3, 9, 13, 39, 117

So the Greatest Common Factor for 63 and 117 is 9

Finding GCF for 63 and 117 by Prime Factorization

The second method to find GCF for numbers 63 and 117 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 63: 3, 3, 7

All Prime Factors of 117: 3, 3, 13

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

Now we need to multiply them to find GCF: 3 × 3 = 9

Related Calculations

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 63 and 117? (The answer is: 9). Select the first number (e.g. '63') and the second number (e.g. '117'). 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

GCF Table

Number 1Number 2GCF
481173
491171
501171
511173
5211713
531171
54117
551171
561171
571173
581171
591171
601173
611171
621171
63117
641171
65117
661173
671171
681171
691173
701171
711171
721179
731171
741171
751173
761171
771171

FAQ

What is the Greatest common Divisor of 63 and 117?

GCF of 63 and 117 is 9