GCF for 90 and 445

What is the Greatest Common Factor of 90 and 445?

Answer: GCF of 90 and 445 is 5

(Five)

Finding GCF for 90 and 445 using all factors (divisors) listing

The first method to find GCF for numbers 90 and 445 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 445: 1, 5, 89, 445

So the Greatest Common Factor for 90 and 445 is 5

Finding GCF for 90 and 445 by Prime Factorization

The second method to find GCF for numbers 90 and 445 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 445: 5, 89

As we can see there is only one Prime Factor common to both numbers. It is 5

So 5 is the Greatest Common Factor of 90 and 445

GCF Table

Number 1Number 2GCF
754455
764451
774451
784451
794451
804455
814451
824451
834451
844451
854455
864451
874451
884451
8944589
904455
914451
924451
934451
944451
954455
964451
974451
984451
994451
1004455
1014451
1024451
1034451
1044451

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 90 and 445? (The answer is: 5). Select the first number (e.g. '90') and the second number (e.g. '445'). 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 90 and 445?

GCF of 90 and 445 is 5