GCF for 50 and 990

What is the Greatest Common Factor of 50 and 990?

Answer: GCF of 50 and 990 is 10

(Ten)

Finding GCF for 50 and 990 using all factors (divisors) listing

The first method to find GCF for numbers 50 and 990 is to list all factors for both numbers and pick the highest common one:

All factors of 50: 1, 2, 5, 10, 25, 50

All factors of 990: 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

So the Greatest Common Factor for 50 and 990 is 10

Finding GCF for 50 and 990 by Prime Factorization

The second method to find GCF for numbers 50 and 990 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 50: 2, 5, 5

All Prime Factors of 990: 2, 3, 3, 5, 11

As we can see there are Prime Factors common to both numbers: 2, 5

Now we need to multiply them to find GCF: 2 × 5 = 10

GCF Table

Number 1Number 2GCF
359905
3699018
379901
389902
399903
4099010
419901
429906
439901
4499022
4599045
469902
479901
489906
499901
5099010
519903
529902
539901
5499018
5599055
569902
579903
589902
599901
6099030
619901
629902
639909
649902

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 Factor of 50 and 990? (The answer is: 10). Select the first number (e.g. '50') and the second number (e.g. '990'). 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

FAQ

What is the Greatest Common Factor of 50 and 990?

GCF of 50 and 990 is 10