GCF for 9 and 6

What is the Greatest common Divisor of 9 and 6?

Answer: GCF of 9 and 6 is 3

(Three)

Finding GCF for 9 and 6 using all factors (divisors) listing

The first method to find GCF for numbers 9 and 6 is to list all factors for both numbers and pick the highest common one:

All factors of 9: 1, 3, 9

All factors of 6: 1, 2, 3, 6

So the Greatest Common Factor for 9 and 6 is 3

Finding GCF for 9 and 6 by Prime Factorization

The second method to find GCF for numbers 9 and 6 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 9: 3, 3

All Prime Factors of 6: 2, 3

As we can see there is only one Prime Factor common to both numbers. It is 3

So 3 is the Greatest Common Factor of 9 and 6

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 9 and 6? (The answer is: 3). Select the first number (e.g. '9') and the second number (e.g. '6'). 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
16
26
36
46
56
666
761
86
96
1062
1161
1266
1361
1462
1563
1662
1761
1866
1961
2062
2163
2262
2361
2466
2561
2662
2763
2862
2961
3066

FAQ

What is the Greatest common Divisor of 9 and 6?

GCF of 9 and 6 is 3