Is 289 a prime number?

Is 289 a prime or composite number?

Answer: Number 289 is not a Prime
289 - is not a Prime Number because it has 3 factors: 1, 17, 289
Number should have exactly two factors to be classified as a Prime number
For 289 to be a prime number it must have only two divisors - 1 and itself (289)

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 289 a prime or composite number? (The answer is: No). Enter number (e.g. '289') 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
274No
No
276No
Yes
278No
No
280No
Yes
282No
Yes
284No
285No
286No
No
288No
No
290No
No
292No
Yes
294No
295No
296No
No
298No
No
No
No
302No
No

FAQ

Is 289 a prime or composite number?

Number 289 is not a Prime

How many factors are in a number 289?

3