The product of all odd positive integers less than 10000, is

The sum of all the even positive integers less than 200 which are not divisible by 6 is (1)6536,(2)6539 (3) 6534 (4)6539

Find the sum of positive integers less than 400.

Find the sum of all positive integers less than 200 that are divisible by 3 and 5.

The number of positive integers less than 1000 having only odd digits is

A positive integer n is called bad if it cannot be expressed as the product of two distinct positive integers greater than 1. Find the number of bad positive integers less than 50.

Find the sum of all odd integers less than 450.

Find the number of positive integers n less than 1000 for which there exists a positive real number x such that n= x[x] . Note : [x] is the greatest integer less than or equal to x.

For how many ordered triplets (a,b,c) of positive integers less than 10 is the product a xx b xx c divisible by 20?

Consider all those two-digit positive integers less than 50, which when divided by 4 yield unity as remainder. What is their sum?