The number of distinct primes dividing `12!+13!+14!` is

If A = {9, 10, 11, 12, 13} and let f : A rarr N is defined by f(x) = highest prime factor of x. then the number of distinct elements in the image of f is :

{:("Quantity A","Quantity B"),("The number of distinct prime","The number of distinct prime"),("factors of 40","factors of 50"):}

The number of distinct prime factors of the largest 4-digit number is

If A = {9, 10, 11, 12, 13} and let f : A rarr N is defined by f(x) = highest prime factor of x. then the number of distinct elements in the image of f is : "(a) 6 (b)7 (c) 8 (d) 4 "

The number of distinct terms in the expansion of (x+y^(2))^(13)+(x^(2)+y)^(14) is