GCF for 90 and 396

What is the Greatest common Divisor of 90 and 396?

Answer: GCF of 90 and 396 is 18

(Eighteen)

Finding GCF for 90 and 396 using all factors (divisors) listing

The first method to find GCF for numbers 90 and 396 is to list all factors for both numbers and pick the highest common one:

All factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

All factors of 396: 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396

So the Greatest Common Factor for 90 and 396 is 18

Finding GCF for 90 and 396 by Prime Factorization

The second method to find GCF for numbers 90 and 396 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 90: 2, 3, 3, 5

All Prime Factors of 396: 2, 2, 3, 3, 11

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

Now we need to multiply them to find GCF: 2 × 3 × 3 = 18

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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 90 and 396? (The answer is: 18). Select the first number (e.g. '90') and the second number (e.g. '396'). 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
753963
763964
7739611
783966
793961
803964
813969
823962
833961
8439612
853961
863962
873963
8839644
893961
90396
913961
923964
933963
943962
953961
9639612
973961
983962
9939699
1003964
1013961
1023966
1033961
1043964

FAQ

What is the Greatest common Divisor of 90 and 396?

GCF of 90 and 396 is 18