Is 28 a prime number?

Is 28 a prime or composite number?

Answer: Number 28 is not a Prime
28 - is not a Prime Number because it has 6 factors: 1, 2, 4, 7, 14, 28
Number should have exactly two factors to be classified as a Prime number
For 28 to be a prime number it must have only two divisors - 1 and itself (28)

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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 28 a prime or composite number? (The answer is: No). Enter number (e.g. '28') and hit the 'Calculate' button.
Prime numbers are the positive integers having only two factors - 1 and the number itself

Prime numbers list

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FAQ

Is 28 a prime or composite number?

Number 28 is not a Prime

How many factors are in a number 28?

6