GCF for 1 and 2

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 1 and 2?

Answer: GCF of 1 and 2 is 1

(One)

Finding GCF for 1 and 2 using all factors (divisors) listing

The first method to find GCF for numbers 1 and 2 is to list all factors for both numbers and pick the highest common one:

All factors of 1: 1

All factors of 2: 1, 2

So the Greatest Common Factor for 1 and 2 is 1

Finding GCF for 1 and 2 by Prime Factorization

Related Calculations

See Also

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 1 and 2? (The answer is: 1). Select the first number (e.g. '1') and the second number (e.g. '2'). 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

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

GCF Table

Number 1Number 2GCF
121
222
321
422
521
622
721
822
921
1022
1121
1222
1321
1422
1521
1622
1721
1822
1921
2022
2121
2222
2321
2422
2521
2622
2721
2822
2921
3022

FAQ

What is the Greatest common Divisor of 1 and 2?

GCF of 1 and 2 is 1

See Also