What is the GCF of 42 and 82

"Greatest Common Factor" Calculator

What is the Greatest common Divisor of 42 and 82?

Answer: GCF of 42 and 82 is 2

(Two)

Finding GCF for 42 and 82 using all factors (divisors) listing

The first method to find GCF for numbers 42 and 82 is to list all factors for both numbers and pick the highest common one:

All factors of 42: 1, 2, 3, 6, 7, 14, 21, 42

All factors of 82: 1, 2, 41, 82

So the Greatest Common Factor for 42 and 82 is 2

Finding GCF for 42 and 82 by Prime Factorization

The second method to find GCF for numbers 42 and 82 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 42: 2, 3, 7

All Prime Factors of 82: 2, 41

As we can see there is only one Prime Factor common to both numbers. It is 2

So 2 is the Greatest Common Factor of 42 and 82

GCF Table

Number 1	Number 2	GCF
27	82	1
28	82	2
29	82	1
30	82	2
31	82	1
32	82	2
33	82	1
34	82	2
35	82	1
36	82	2
37	82	1
38	82	2
39	82	1
40	82	2
41	82	41
42	82	2
43	82	1
44	82	2
45	82	1
46	82	2
47	82	1
48	82	2
49	82	1
50	82	2
51	82	1
52	82	2
53	82	1
54	82	2
55	82	1
56	82	2

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 42 and 82? (The answer is: 2). Select the first number (e.g. '42') and the second number (e.g. '82'). 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 for 42 and 82

What is the Greatest common Divisor of 42 and 82?

Finding GCF for 42 and 82 using all factors (divisors) listing

Finding GCF for 42 and 82 by Prime Factorization

See Also

GCF Table

About "Greatest Common Factor" Calculator

"Greatest Common Factor" Calculator

FAQ

What is the Greatest common Divisor of 42 and 82?

See Also

Number 1	Number 2	GCF
27	82	1
28	82	2
29	82	1
30	82	2
31	82	1
32	82	2
33	82	1
34	82	2
35	82	1
36	82	2
37	82	1
38	82	2
39	82	1
40	82	2
41	82	41
42	82	2
43	82	1
44	82	2
45	82	1
46	82	2
47	82	1
48	82	2
49	82	1
50	82	2
51	82	1
52	82	2
53	82	1
54	82	2
55	82	1
56	82	2

Number 1	Number 2	GCF
27	82	1
28	82	2
29	82	1
30	82	2
31	82	1
32	82	2
33	82	1
34	82	2
35	82	1
36	82	2
37	82	1
38	82	2
39	82	1
40	82	2
41	82	41
42	82	2
43	82	1
44	82	2
45	82	1
46	82	2
47	82	1
48	82	2
49	82	1
50	82	2
51	82	1
52	82	2
53	82	1
54	82	2
55	82	1
56	82	2

Number 1	Number 2	GCF
27	82	1
28	82	2
29	82	1
30	82	2
31	82	1
32	82	2
33	82	1
34	82	2
35	82	1
36	82	2
37	82	1
38	82	2
39	82	1
40	82	2
41	82	41
42	82	2
43	82	1
44	82	2
45	82	1
46	82	2
47	82	1
48	82	2
49	82	1
50	82	2
51	82	1
52	82	2
53	82	1
54	82	2
55	82	1
56	82	2