GCF for 72 and 108

What is the Greatest common Divisor of 72 and 108?

Answer: GCF of 72 and 108 is 36

(Thirty-six)

Finding GCF for 72 and 108 using all factors (divisors) listing

The first method to find GCF for numbers 72 and 108 is to list all factors for both numbers and pick the highest common one:

All factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

All factors of 108: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108

So the Greatest Common Factor for 72 and 108 is 36

Finding GCF for 72 and 108 by Prime Factorization

The second method to find GCF for numbers 72 and 108 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 72: 2, 2, 2, 3, 3

All Prime Factors of 108: 2, 2, 3, 3, 3

As we can see there are Prime Factors common to both numbers: 2, 2, 3, 3

Now we need to multiply them to find GCF: 2 × 2 × 3 × 3 = 36

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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 72 and 108? (The answer is: 36). Select the first number (e.g. '72') and the second number (e.g. '108'). 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
571083
581082
591081
60108
611081
621082
631089
641084
651081
661086
671081
681084
691083
701082
711081
72108
731081
741082
751083
761084
771081
781086
791081
801084
81108
821082
831081
84108
851081
861082

FAQ

What is the Greatest common Divisor of 72 and 108?

GCF of 72 and 108 is 36