| 49580 | How many 4 digit numbers are there, if it is known that… | Medium | |
| 49647 | What will be the remainder when 13^36 is divided by 2196 | Medium | |
| 49650 | If s, t, and u are distinct positive prime numbers, then (s^3)(t)(u)… | Medium | |
| 49656 | N is an 80-digit positive integer (in the decimal scale) | Medium | |
| 49667 | If n is an integer and n^4 is divisible by 10, which… | Medium | |
| 49672 | The smallest prime factor of 899 is xx | Medium | |
| 49796 | A three digit number divisible by 7 becomes divisible by 3 when… | Medium | |
| 49814 | The sum of first seven prime numbers is | Medium | |
| 49837 | List L: ABC, BCA, CAB In list L above, there are 4… | Medium | |
| 49866 | If u+5/v is a prime integer, which of the following must be… | Medium | |
| 49887 | a,b,c,d,e are distinct numbers | Medium | |
| 49970 | If a and b are both odd prime numbers and a <… | Medium | |
| 50005 | x is a positive integer of Z less than 500 | Medium | |
| 50019 | Let a be a positive integer | Medium | |
| 50116 | The sum of three prime numbers is 100 | Medium | |
| 50120 | When T is divided by 9, the remainder is 4 | Medium | |
| 50149 | The remainder when dividing the expression (X + Y) by 5 is… | Medium | |
| 50194 | 2ab5 is a four digit number divisible by 25 | Medium | |
| 50220 | How many integers less than 100 have exactly 4 odd factors but… | Medium | |
| 50222 | If q = 20 | Medium | |
| 50281 | When N is divided by 10 the remainder is 1 and when… | Medium | |
| 50291 | when a number is divided by 13,the remainder is 11.When the same… | Medium | |
| 50300 | In a certain mathematical activity, we start with seven cards, each with… | Medium | |
| 50327 | If X = the product of four distinct prime numbers, how many… | Medium | |
| 50351 | How many integers from 1 to 100 exist such that each is… | Medium | |
| 50397 | what is the total number of factor of 16 | Medium | |
| 50415 | How many integers from 1 to 100 (both inclusive) have odd number… | Medium | |
| 50447 | Find the largest number of five digits which is exactly divisible by… | Medium | |
| 50475 | j, b, and c are positive integers | Medium | |
| 50483 | If n is a positive integer, what is the maximum possible number… | Medium | |
| 50494 | Find the number which is nearest to 3105 and is exactly divisible… | Medium | |
| 50506 | When positive integer Q is divided by 6 the remainder is 3 | Medium | |
| 50586 | If n is a 45-digit positive integer, all of whose digits are… | Medium | |
| 50649 | The product D of the first 10 prime numbers is closest to… | Medium | |
| 50655 | What is the smallest prime number with two sevens in it | Medium | |
| 50694 | Let p be a prime number | Medium | |
| 50700 | A bag of n peanuts can be divided into 9 smaller bags… | Medium | |
| 50726 | a is the product of each integer from 1 to 50, inclusive… | Medium | |
| 50730 | If the function Q is defined by the formula Q = 5w/(4d(z^2))… | Medium | |
| 50737 | If a is a positive integer and a^2 is divisible by 12… | Medium | |
| 50759 | How many positive integers r less than 30 have no common prime… | Medium | |
| 50786 | Positive integer x has z factors; 3x has 3 factors; Which of… | Medium | |
| 50791 | Find a sum for first 5 prime no's | Medium | |
| 50860 | What is the total number of P integers between 100 and 200… | Medium | |
| 50868 | Integer n is a four digit number such that it is made… | Medium | |
| 51025 | A number when divided by 342 gives a remainder 47 | Medium | |
| 51030 | x, y, a, and b are positive integers | Medium | |
| 51038 | Which of the following numbers has the greatest number of distinct prime… | Medium | |
| 51135 | In the above number, A and B represent the tens and units… | Medium | |
| 51197 | If x/(9p) is an even prime number, where x is a positive… | Medium | |