Is 820 a prime number?

Is 820 a prime or composite number?

Answer: Number 820 is not a Prime
820 - is not a Prime Number because it has 12 factors: 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
Number should have exactly two factors to be classified as a Prime number
For 820 to be a prime number it must have only two divisors - 1 and itself (820)

See Also

About "Is number a Prime" Calculator

This calculator will help you find out if a given number is Prime. For example, it can help you find out is 820 a prime or composite number? (The answer is: No). Enter number (e.g. '820') and hit the 'Calculate' button.
Prime numbers are the positive integers having only two factors - 1 and the number itself

Prime numbers list

NumberIs Prime
805No
806No
807No
No
Yes
810No
811Yes
812No
No
814No
815No
816No
817No
818No
No
No
Yes
No
Yes
824No
825No
826No
Yes
828No
Yes
830No
No
832No
No
834No

FAQ

Is 820 a prime or composite number?

Number 820 is not a Prime

How many factors are in a number 820?

12