| 84213 | which of the following is the square of an prime number | Medium | |
| 84245 | A five-digit number divisible by 3 is to be formed using numerical… | Medium | |
| 84251 | Two prime numbers are considered consecutive if no other prime lies between… | Medium | |
| 84348 | Find the number of factors T of 180 that are in the… | Medium | |
| 84380 | If 'a' is a positive integer exactly divisible by 3 or 5… | Medium | |
| 84520 | Consider a sequence of numbers given by the expression 5 + (n… | Medium | |
| 84522 | What least number should be subtracted from 2590 so that the remainder… | Medium | |
| 84528 | which no | Medium | |
| 84585 | If integers e and b are distinct factors of 30, which of… | Medium | |
| 84598 | A number is said to be prime saturated if the product of… | Medium | |
| 84661 | How many integers Z are prime numbers in the range 200 <… | Medium | |
| 84692 | If a positive integer n is divisible by both 3 and 7… | Medium | |
| 84710 | What is the least number which when divided by 8, 12, 15… | Medium | |
| 84716 | If x, y, and z are positive integers such that x is… | Medium | |
| 84737 | Which digits should come in place of * and … is divisible… | Medium | |
| 84823 | s is a positive integer and multiple of 2; p = 4^s… | Medium | |
| 84924 | The function f is defined for all positive integers x by the… | Medium | |
| 84927 | What is the smallest integer T greater than 1 that leaves a… | Medium | |
| 84999 | When positive integer k is divided by 5, the remainder is 2 | Medium | |
| 85016 | A three digit number divisible by 7 becomes divisible by 3 when… | Medium | |
| 85169 | There are 9 cities numbered 1 to 9.From how many cities the… | Medium | |
| 85210 | Which of the following numbers is divisible by each one of 3… | Medium | |
| 85231 | How many 4-digit numbers can be formed from the digits 0,2, 3… | Medium | |
| 85234 | P is a no | Medium | |
| 85318 | What is the sum E of all 3 digit numbers that leave… | Medium | |
| 85349 | x is a positive integer of F less than 500 | Medium | |
| 85350 | If m+5/n is a prime integer, which of the following must be… | Medium | |
| 85370 | How many even integers n, where 100 <= n <= 200, are… | Medium | |
| 85427 | If c and d are unique prime integers, which of the following… | Medium | |
| 85486 | The smallest value of n, for which 2n + 1 is not… | Medium | |
| 85506 | If 6x^2 + x - 12 = (gx + b)(cx + d)… | Medium | |
| 85548 | If n is a positive integer, and n^2 has 25 factors, which… | Medium | |
| 85565 | If s, t and r are positive integers greater than 1, and… | Medium | |
| 85643 | The least number which is a perfect square and is divisible by… | Medium | |
| 85649 | What is the smallest number W which when increased by 5 is… | Medium | |
| 85719 | If a, b, and c are consecutive integers such that a <… | Medium | |
| 85722 | what is the nearest no | Medium | |
| 85724 | The least perfect square, which is divisible by each of 21, 36… | Medium | |
| 85926 | If integers w and b are distinct factors of 30, which of… | Medium | |
| 85943 | If x > y, x < 6, and y > -3, what… | Medium | |
| 85989 | The positive two-digit integers s and t have the same digits, but… | Medium | |
| 86006 | The positive integers m and n leave remainders of 2 and 3… | Medium | |
| 86015 | If 9 is a factor of 2z, then which of the following… | Medium | |
| 86057 | 325325 is a six digit number.It is divisible by | Medium | |
| 86061 | If q and y are different prime numbers less than ten, what… | Medium | |
| 86170 | When positive integer R is divided by 6 the remainder is 3 | Medium | |
| 86175 | A no | Medium | |
| 86182 | The largest number of four digits exactly divisible by 77 is | Medium | |
| 86202 | An even positive integer 'x' has 'y' positive integral factors including '1'… | Medium | |
| 86230 | If positive integer n is divisible by both 5 and 21, then… | Medium | |