Is 181 a prime number?

Is 181 a prime or composite number?

Answer: Number 181 is a Prime
181 - is a Prime Number because it has only 2 factors: 1 and 181 (itself)
Number should have exactly two factors to be classified as a Prime number
Since number 181 has exactly 2 factors - it is a Prime number

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 181 a prime or composite number? (The answer is: Yes). Enter number (e.g. '181') 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
166No
Yes
No
No
170No
No
172No
Yes
174No
No
176No
No
178No
Yes
No
Yes
No
No
184No
185No
186No
No
188No
No
190No
Yes
192No
Yes
194No
No

FAQ

Is 181 a prime or composite number?

Number 181 is a Prime

How many factors are in a number 181?

2