GCF for 27 and 77

What is the Greatest Common Factor of 27 and 77?

Answer: GCF of 27 and 77 is 1

(One)

Finding GCF for 27 and 77 using all factors (divisors) listing

The first method to find GCF for numbers 27 and 77 is to list all factors for both numbers and pick the highest common one:

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

All factors of 77: 1, 7, 11, 77

So the Greatest Common Factor for 27 and 77 is 1

Finding GCF for 27 and 77 by Prime Factorization

GCF Table

Number 1Number 2GCF
12771
13771
14777
15771
16771
17771
18771
19771
20771
21777
2277
23771
24771
25771
26771
27771
28777
29771
30771
31771
32771
3377
34771
3577
36771
37771
38771
39771
40771
41771

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 27 and 77? (The answer is: 1). Select the first number (e.g. '27') and the second number (e.g. '77'). 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 27 and 77?

GCF of 27 and 77 is 1