GCF for 90 and 126

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 90 and 126?

Answer: GCF of 90 and 126 is 18

(Eighteen)

Finding GCF for 90 and 126 using all factors (divisors) listing

The first method to find GCF for numbers 90 and 126 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 126: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

So the Greatest Common Factor for 90 and 126 is 18

Finding GCF for 90 and 126 by Prime Factorization

The second method to find GCF for numbers 90 and 126 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 126: 2, 3, 3, 7

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 126? (The answer is: 18). Select the first number (e.g. '90') and the second number (e.g. '126'). 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

Greatest Common Factor of

and

GCF Table

Number 1Number 2GCF
751263
761262
771267
781266
791261
801262
811269
821262
831261
8412642
851261
861262
871263
881262
891261
9012618
911267
921262
931263
941262
951261
961266
971261
9812614
991269
1001262
1011261
1021266
1031261
1041262

FAQ

What is the Greatest common Divisor of 90 and 126?

GCF of 90 and 126 is 18

See Also