GCF for 90 and 775

What is the Greatest Common Factor of 90 and 775?

Answer: GCF of 90 and 775 is 5

(Five)

Finding GCF for 90 and 775 using all factors (divisors) listing

The first method to find GCF for numbers 90 and 775 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 775: 1, 5, 25, 31, 155, 775

So the Greatest Common Factor for 90 and 775 is 5

Finding GCF for 90 and 775 by Prime Factorization

The second method to find GCF for numbers 90 and 775 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 775: 5, 5, 31

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 775

GCF Table

Number 1Number 2GCF
7577525
767751
777751
787751
797751
807755
817751
827751
837751
847751
857755
867751
877751
887751
897751
907755
917751
927751
9377531
947751
957755
967751
977751
987751
997751
10077525
1017751
1027751
1037751
1047751

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 775? (The answer is: 5). Select the first number (e.g. '90') and the second number (e.g. '775'). 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 775?

GCF of 90 and 775 is 5