GCF for 20 and 510

"Greatest Common Factor" Calculator

What is the Greatest common Divisor of 20 and 510?

Answer: GCF of 20 and 510 is 10

(Ten)

Finding GCF for 20 and 510 using all factors (divisors) listing

The first method to find GCF for numbers 20 and 510 is to list all factors for both numbers and pick the highest common one:

All factors of 20: 1, 2, 4, 5, 10, 20

All factors of 510: 1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510

So the Greatest Common Factor for 20 and 510 is 10

Finding GCF for 20 and 510 by Prime Factorization

The second method to find GCF for numbers 20 and 510 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 20: 2, 2, 5

All Prime Factors of 510: 2, 3, 5, 17

As we can see there are Prime Factors common to both numbers: 2, 5

Now we need to multiply them to find GCF: 2 × 5 = 10

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What is the GCF of 20 and 510. Find the GCF (GCD) of 510 and 20 - the biggest number that can divide two integers.

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GCF Table

Number 1	Number 2	GCF
5	510	5
6	510	6
7	510	1
8	510	2
9	510	3
10	510	10
11	510	1
12	510	6
13	510	1
14	510	2
15	510	15
16	510	2
17	510	17
18	510	6
19	510	1
20	510	10
21	510	3
22	510	2
23	510	1
24	510	6
25	510	5
26	510	2
27	510	3
28	510	2
29	510	1
30	510	30
31	510	1
32	510	2
33	510	3
34	510	34

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 20 and 510? (The answer is: 10). Select the first number (e.g. '20') and the second number (e.g. '510'). 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

Number 1	Number 2	GCF
5	510	5
6	510	6
7	510	1
8	510	2
9	510	3
10	510	10
11	510	1
12	510	6
13	510	1
14	510	2
15	510	15
16	510	2
17	510	17
18	510	6
19	510	1
20	510	10
21	510	3
22	510	2
23	510	1
24	510	6
25	510	5
26	510	2
27	510	3
28	510	2
29	510	1
30	510	30
31	510	1
32	510	2
33	510	3
34	510	34

Number 1	Number 2	GCF
5	510	5
6	510	6
7	510	1
8	510	2
9	510	3
10	510	10
11	510	1
12	510	6
13	510	1
14	510	2
15	510	15
16	510	2
17	510	17
18	510	6
19	510	1
20	510	10
21	510	3
22	510	2
23	510	1
24	510	6
25	510	5
26	510	2
27	510	3
28	510	2
29	510	1
30	510	30
31	510	1
32	510	2
33	510	3
34	510	34

GCF for 20 and 510

What is the Greatest common Divisor of 20 and 510?

Finding GCF for 20 and 510 using all factors (divisors) listing

Finding GCF for 20 and 510 by Prime Factorization

GCF Table

About "Greatest Common Factor" Calculator

"Greatest Common Factor" Calculator

FAQ

What is the Greatest common Divisor of 20 and 510?

Number 1	Number 2	GCF
5	510	5
6	510	6
7	510	1
8	510	2
9	510	3
10	510	10
11	510	1
12	510	6
13	510	1
14	510	2
15	510	15
16	510	2
17	510	17
18	510	6
19	510	1
20	510	10
21	510	3
22	510	2
23	510	1
24	510	6
25	510	5
26	510	2
27	510	3
28	510	2
29	510	1
30	510	30
31	510	1
32	510	2
33	510	3
34	510	34