Is 157 a prime number?

Is 157 a prime or composite number?

Answer: Number 157 is a Prime
157 - is a Prime Number because it has only 2 factors: 1 and 157 (itself)
Number should have exactly two factors to be classified as a Prime number
Since number 157 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 157 a prime or composite number? (The answer is: Yes). Enter number (e.g. '157') 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
142No
No
No
No
No
No
No
Yes
No
Yes
No
No
No
No
No
Yes
158No
No
No
No
162No
Yes
164No
No
166No
Yes
No
No
170No
No

FAQ

Is 157 a prime or composite number?

Number 157 is a Prime

How many factors are in a number 157?

2