GCF for 100 and 635

What is the Greatest common Divisor of 100 and 635?

Answer: GCF of 100 and 635 is 5

(Five)

Finding GCF for 100 and 635 using all factors (divisors) listing

The first method to find GCF for numbers 100 and 635 is to list all factors for both numbers and pick the highest common one:

All factors of 100: 1, 2, 4, 5, 10, 20, 25, 50, 100

All factors of 635: 1, 5, 127, 635

So the Greatest Common Factor for 100 and 635 is 5

Finding GCF for 100 and 635 by Prime Factorization

The second method to find GCF for numbers 100 and 635 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 100: 2, 2, 5, 5

All Prime Factors of 635: 5, 127

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 100 and 635

GCF Table

Number 1Number 2GCF
856355
866351
876351
886351
896351
906355
916351
926351
936351
946351
956355
966351
976351
986351
996351
1006355
1016351
1026351
1036351
1046351
1056355
1066351
1076351
1086351
1096351
1106355
1116351
1126351
1136351
1146351

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 100 and 635? (The answer is: 5). Select the first number (e.g. '100') and the second number (e.g. '635'). 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 Divisor of 100 and 635?

GCF of 100 and 635 is 5