If 13 is a factor of 3523, then 3523 is a prime number

What is the total number of factors of a prime number?

Number of positive integers x for which f(x)=x^3-8x^2+20 x-13 is a prime number is______.

Number of positive integers x for which f(x)=x^3-8x^2+20 x-13 is a prime number is______.

The product of 2 distinct positive prime numbers is an even number, and one less than the product is a prime number. All of the following prime numbers could be one of the original prime numbers EXCEPT ?

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-

If 3 is the least prime factor of number a and 7 is the least prime factor of number b, then the least prime factor of a+b , is

The difference between the factors of prime number x is 1. The difference between the factors of prime number y is 2. Is xy even?

Prime factors of the denominator of a rational number with the decimal expansion 44.123 are

p and q are two positive integers such that the least prime factor of p is 3 and the least prime factor of q is 5 . Find the least prime factor of (p + q).