GCF for 100 and 195

What is the Greatest common Divisor of 100 and 195?

Answer: GCF of 100 and 195 is 5

(Five)

Finding GCF for 100 and 195 using all factors (divisors) listing

The first method to find GCF for numbers 100 and 195 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 195: 1, 3, 5, 13, 15, 39, 65, 195

So the Greatest Common Factor for 100 and 195 is 5

Finding GCF for 100 and 195 by Prime Factorization

The second method to find GCF for numbers 100 and 195 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 195: 3, 5, 13

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 195

GCF Table

Number 1Number 2GCF
851955
861951
871953
881951
891951
9019515
9119513
921951
931953
941951
951955
961953
971951
981951
991953
100195
1011951
1021953
1031951
10419513
10519515
1061951
1071951
1081953
1091951
1101955
1111953
1121951
1131951
1141953

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 195? (The answer is: 5). Select the first number (e.g. '100') and the second number (e.g. '195'). 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 195?

GCF of 100 and 195 is 5