GCF of 72 and 99 (Greatest Common Factor)

"Greatest Common Factor" Calculator

What is the Greatest Common Divisor of 72 and 99?

Answer

GCF of 72 and 99 is

(Nine)

Finding GCF for 72 and 99 using all factors (divisors) listing

The first method to find GCF for numbers 72 and 99 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 99: 1, 3, 9, 11, 33, 99

So the Greatest Common Factor for 72 and 99 is 9

Finding GCF for 72 and 99 by Prime Factorization

The second method to find GCF for numbers 72 and 99 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 99: 3, 3, 11

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

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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 99? (The answer is: 9). Select the first number (e.g. '72') and the second number (e.g. '99'). 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

GCF Table

Number 1	Number 2	GCF
72	84	12
72	85	1
72	86	2
72	87	3
72	88	8
72	89	1
72	90	18
72	91	1
72	92	4
72	93	3
72	94	2
72	95	1
72	96	24
72	97	1
72	98	2
72	99	9
72	100	4
72	101	1
72	102	6
72	103	1
72	104	8
72	105	3
72	106	2
72	107	1
72	108	36
72	109	1
72	110	2
72	111	3
72	112	8
72	113	1

FAQ

What is the Greatest Common Divisor of 72 and 99?

GCF of 72 and 99 is 9

How to find the GCF of 72 and 99?

You can find the GCF of 72 and 99 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 72 and 99 is 9.

What prime factors do 72 and 99 share?

The prime factorizations of 72 and 99 have 3 × 3 in common, and multiplying those shared primes gives 9 — exactly the greatest common factor.

How does the GCF reduce the fraction 72/99?

Divide the numerator and the denominator by the GCF 9: 72 ÷ 9 = 8 and 99 ÷ 9 = 11. So 72/99 in lowest terms is 8/11.

GCF of 72 and 99 (Greatest Common Factor)

What is the Greatest Common Divisor of 72 and 99?

Finding GCF for 72 and 99 using all factors (divisors) listing

Finding GCF for 72 and 99 by Prime Factorization

Related Calculations

See Also

About "Greatest Common Factor" Calculator

GCF Table

FAQ

What is the Greatest Common Divisor of 72 and 99?

How to find the GCF of 72 and 99?

What prime factors do 72 and 99 share?

How does the GCF reduce the fraction 72/99?

See Also

Number 1	Number 2	GCF
72	84	12
72	85	1
72	86	2
72	87	3
72	88	8
72	89	1
72	90	18
72	91	1
72	92	4
72	93	3
72	94	2
72	95	1
72	96	24
72	97	1
72	98	2
72	99	9
72	100	4
72	101	1
72	102	6
72	103	1
72	104	8
72	105	3
72	106	2
72	107	1
72	108	36
72	109	1
72	110	2
72	111	3
72	112	8
72	113	1

Number 1	Number 2	GCF
72	84	12
72	85	1
72	86	2
72	87	3
72	88	8
72	89	1
72	90	18
72	91	1
72	92	4
72	93	3
72	94	2
72	95	1
72	96	24
72	97	1
72	98	2
72	99	9
72	100	4
72	101	1
72	102	6
72	103	1
72	104	8
72	105	3
72	106	2
72	107	1
72	108	36
72	109	1
72	110	2
72	111	3
72	112	8
72	113	1

Number 1	Number 2	GCF
72	84	12
72	85	1
72	86	2
72	87	3
72	88	8
72	89	1
72	90	18
72	91	1
72	92	4
72	93	3
72	94	2
72	95	1
72	96	24
72	97	1
72	98	2
72	99	9
72	100	4
72	101	1
72	102	6
72	103	1
72	104	8
72	105	3
72	106	2
72	107	1
72	108	36
72	109	1
72	110	2
72	111	3
72	112	8
72	113	1