Is 813 a prime number?

Is 813 a prime or composite number?

Answer: Number 813 is not a Prime
813 - is not a Prime Number because it has 4 factors: 1, 3, 271, 813
Number should have exactly two factors to be classified as a Prime number
For 813 to be a prime number it must have only two divisors - 1 and itself (813)

Related Calculations

Prime numbers list

NumberIs Prime
798No
No
No
801No
802No
803No
804No
No
806No
807No
808No
Yes
810No
811Yes
812No
No
814No
815No
816No
817No
818No
No
820No
Yes
822No
Yes
824No
825No
826No
Yes

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 813 a prime or composite number? (The answer is: No). Enter number (e.g. '813') and hit the 'Calculate' button.
Prime numbers are the positive integers having only two factors - 1 and the number itself

FAQ

Is 813 a prime or composite number?

Number 813 is not a Prime

How many factors are in a number 813?

4