GCF for 47 and 81

What is the Greatest common Divisor of 47 and 81?

Answer: GCF of 47 and 81 is 1

(One)

Finding GCF for 47 and 81 using all factors (divisors) listing

The first method to find GCF for numbers 47 and 81 is to list all factors for both numbers and pick the highest common one:

All factors of 47: 1, 47

All factors of 81: 1, 3, 9, 27, 81

So the Greatest Common Factor for 47 and 81 is 1

Finding GCF for 47 and 81 by Prime Factorization

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 47 and 81? (The answer is: 1). Select the first number (e.g. '47') and the second number (e.g. '81'). 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

GCF Table

Number 1Number 2GCF
3281
33813
34811
35811
3681
37811
38811
39813
40811
41811
42813
43811
44811
4581
46811
4781
4881
49811
50811
51813
52811
53811
5481
55811
56811
57813
58811
59811
60813
61811

FAQ

What is the Greatest common Divisor of 47 and 81?

GCF of 47 and 81 is 1