100001 is a prime number or not ?

Is 171 is a prime number ?

Is 199a prime number ?

Is 167 is a prime number ?

Which is prime number ?

The number 2^(P)-1 is a prime number for

If M is even prime number,N is least prime number of two digits & P is greatest prime number of two digits, then (P+N)/(M) is dividible by-

Assertion(A): sqrt(a) is an irrational number, when a is a prime number. Reason (R):Square root of any prime number is an irrational number.

If n^2+2n-8 is a prime number where n in n , then n is a. also a prime number b. relatively prime to 10 c. relatively prime to 6 d. a composite number

Two dice are rolled simultaneously.The probability that the sum of the two numbers onthe dice is a prime number is the dice is a prime number is