# Tag Archives: Numbers

Lucky numbers are the positive integers whose decimal representations contain only the lucky digits 4 and 7. What minimum lucky number has the sum of digits… Read More
Given two integers n and m. Find the longest contiguous subset in binary representation of both the numbers and their decimal value. Example 1:  Input… Read More
Round 1(2 hrs): It had two sections: 1. 50 Mcqs in 60 minutes. The questions included were related to networking, OS, quantitative aptitude, c, c++,… Read More
Given a non-negative number n and a value k. Find the kth smallest number that can be formed using the digits of the given number… Read More
Microsoft IDC came to our campus to recruit summer interns. The selection procedure involved a coding round, group fly followed by 3 interviews. Round 1… Read More
Given two numbers N and K. We need to find out if ‘N’ can be written as sum of ‘K’ prime numbers. Given N <= 10^9… Read More
Question 1 : Write a program to determine whether a given number can be expressed as sum of two prime numbers or not. For example… Read More
Given a number n, count all distinct divisors of it. Examples:  Input : 18 Output : 6 Divisors of 18 are 1, 2, 3, 6,… Read More
Given a string that contains digits of a number. The number may contain many same continuous digits in it. The task is to count number… Read More
Which of the following is the largest of all ? (i) 7/8 (ii) 15/16 (iii) 23/24 (iv) 31/32 (A) (i) (B) (ii) (C) (iii) (D)… Read More
Two numbers are in the ratio of 5:7. If their LCM is 105, what is the difference between their squares ? (A) 216 (B) 210… Read More
HCF of two numbers is 11 and their LCM is 385. If the numbers do not differ by more than 50, what is the sum… Read More
What is the largest number which divides 26, 47, 84 to leave remainders 2, 3, 0 respectively ? (A) 4 (B) 6 (C) 8 (D)… Read More
What is the smallest number which when divided by 6, 9, 11, 16 and 22 leaves remainder 3 in each case ? (A) 3267 (B)… Read More
A number leaves remainders 1, 4 and 7 on being divided successively by 3, 5 and 8 respectively. What is the product of the remainders… Read More