| 40827 | What is the units digit of (147^17)^48 | Medium | |
| 40838 | Consider a Number 3.1n6 n represent the hundredths digit in the number… | Medium | |
| 40911 | If n = 8^8 – 8, what is the units digit of… | Medium | |
| 41038 | If 525/999=0.525, what is the 81st digit to the right of the… | Medium | |
| 41040 | A cashier mentally reversed the digits of one customer's correct amount of… | Medium | |
| 41288 | How many 3-digit positive integers are there, where each digit is positive… | Medium | |
| 41332 | How many 4-digit even numbers are possible such that if one of… | Medium | |
| 41412 | What is the units digit of 222^(333)*333^(222) | Medium | |
| 41441 | What is the unit digit in {(6374)^1793 x (625)317 x (341^491)} | Medium | |
| 41741 | K-numbers are positive integers with only 2's as their digits | Medium | |
| 41742 | How many digits are in (8×10^18)(10×10^10) | Medium | |
| 42035 | How many 3 digit even numbers do not use any digit more… | Medium | |
| 42323 | What is the units digit of (5!*4 | Medium | |
| 42457 | How many integers from 101 to 600, inclusive, remains the value unchanged… | Medium | |
| 42496 | How many integers between 314,700 and 458,600 have tens digit 1 and… | Medium | |
| 42546 | If two numbers x, a perfect square and y, a perfect cube… | Medium | |
| 42599 | How many integers between 324,700 and 387,600 have tens digit 1 and… | Medium | |
| 42745 | How many integers between 1 and 10^19 are such that the sum… | Medium | |
| 42817 | K-numbers are positive integers with only 2's as their digits | Medium | |
| 42908 | What is the tens digit of 7^1033 | Medium | |
| 42920 | A five digit number is to be formed using each of the… | Medium | |
| 42976 | AB +BA ___ 202 In the addition problem above, A and B… | Medium | |
| 43059 | How many integers between 300 and 1400 are there such that their… | Medium | |
| 43073 | How many odd three-digit integers greater than 700 are there such that… | Medium | |
| 43307 | A two-digit number is such that the product of the digits is… | Medium | |
| 43631 | In a set of numbers from 100 to 1000 inclusive, how many… | Medium | |
| 43745 | How many times digit 10 is used while writing numbers from 100… | Medium | |
| 43842 | The total number of digits used in numbering the pages of a… | Medium | |
| 43867 | If 55^4*11^6*16^3 = x, what is the units digit of x | Medium | |
| 43905 | How many integers between 1 and 10^18 are such that the sum… | Medium | |
| 44066 | How many integers k greater than 100 and less than 600 are… | Medium | |
| 44070 | The digital sum of a number is the sum of its digits | Medium | |
| 44188 | How many different positive integers exist between 10^4 and 10^5, the sum… | Medium | |
| 44367 | Consider a Number 3.1n4 n represent the hundredths digit in the number… | Medium | |
| 44587 | How many number of 3 digits can be formed with the digits… | Medium | |
| 44646 | Given that p is a positive even integer with a positive units… | Medium | |
| 44683 | What is the unit digit in {(6374)^1793 x (625)^317 x (341)^491)} | Medium | |
| 45017 | What is the unit digit in 4^100 | Medium | |
| 45227 | What is the unit digit of (6!*3 | Medium | |
| 45278 | How many pages the book have, if total 303 digits are used… | Medium | |
| 45529 | What is the sum of the digits of integer k, if k… | Medium | |
| 45684 | In a three digit number, the hundred digit is 2 more than… | Medium | |
| 45762 | How many integers between 324,700 and 418,600 have tens digit 1 and… | Medium | |
| 45797 | How many times digit 20 is used while writing numbers from 100… | Medium | |
| 45885 | A palindrome is a number that reads the same forward and backward… | Medium | |
| 45977 | What is the units digit of 18 | Medium | |
| 46002 | If x = a!, which of these following values of a is… | Medium | |
| 46189 | In each of the following numbers, what should be the missing digit… | Medium | |
| 46225 | What is the units' digit of the following expression (13)^5*(13)^10*(17)^5 | Medium | |
| 46244 | How many 4 digit number contain number 2 | Medium | |