Is 400 a prime number?

Is 400 a prime or composite number?

Answer: Number 400 is not a Prime
400 - is not a Prime Number because it has 15 factors: 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
Number should have exactly two factors to be classified as a Prime number
For 400 to be a prime number it must have only two divisors - 1 and itself (400)

Prime numbers list

NumberIs Prime
385No
386No
387No
388No
Yes
390No
No
392No
393No
394No
395No
396No
Yes
398No
No
No
Yes
402No
No
404No
405No
406No
No
408No
Yes
410No
No
No
No
414No

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 400 a prime or composite number? (The answer is: No). Enter number (e.g. '400') and hit the 'Calculate' button.
Prime numbers are the positive integers having only two factors - 1 and the number itself

FAQ

Is 400 a prime or composite number?

Number 400 is not a Prime

How many factors are in a number 400?

15