(v) If p and q are prime factors of a number a then their product `p xx q` is also a factor of a.

If p and q are two prime numbers,then what is their LCM?

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

If p and q are primes, then H.C.F. (p, q) will be

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).

A rational number in its decimal expansion is 1.7351. What can you about the prime factors of q this number is expressed in the form =p/q Give reason.

If p,q,r,s,t are prime numbers.The number of ways in which the product pq^(2)r^(3) st can be expressed as product of two factors,excluding 1 as factor is

If (x - p) and (x-q) are the factors of x^(2)+px+q , then the values of p and q are respectively _____.

If p and q are primes such that p=q+2 prove that p^(p)+q^(q) is a multiple of p+q