Is 161 a prime number?

Is 161 a prime or composite number?

Answer: Number 161 is not a Prime
161 - is not a Prime Number because it has 4 factors: 1, 7, 23, 161
Number should have exactly two factors to be classified as a Prime number
For 161 to be a prime number it must have only two divisors - 1 and itself (161)

Prime numbers list

NumberIs Prime
146No
No
148No
Yes
No
Yes
No
No
154No
No
No
Yes
158No
No
No
No
162No
Yes
No
No
166No
Yes
No
No
No
No
172No
Yes
174No
175No

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 161 a prime or composite number? (The answer is: No). Enter number (e.g. '161') and hit the 'Calculate' button.
Prime numbers are the positive integers having only two factors - 1 and the number itself

FAQ

Is 161 a prime or composite number?

Number 161 is not a Prime

How many factors are in a number 161?

4