(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 2009 = p^a x q^b where p and q are prime numbers, then the value of (p+q) is

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).

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).

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

If p,q and r are prime numbers such that r=q+2 and q=p+2 , then the number of triples of the form (p,q,r) is

P is the set of factors of 5, Q is the set of factors of 25 and R is the set of factors of 125. Which one of the following is false? Explain. P sub Q

If p:0 is a natural number q:5 is a factor of 10, then