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Equidigital Numbers
December 9, 2016

A number n is called Equidigital if the number of digits in the prime factorization of n (including powers) is same as number of digits… Read More »

December 9, 2016

A number n is called Equidigital if the number of digits in the prime factorization of n (including powers) is same as number of digits… Read More »

December 1, 2016

Given an array of limits. For every limit, find the prime number which can be written as the sum of the most consecutive primes smaller… Read More »

November 24, 2016

Emirp is the word “prime” spelled backwards, and it refers to a prime number that becomes a new prime number when you reverse its digits.… Read More »

November 18, 2016

Given a number n, the task is to find out whether this number is smith or not. A Smith Number is a composite number whose… Read More »

November 15, 2016

Given a Number n such that 1 <= N <= 10^6, the Task is to Find the LCM of First n Natural Numbers. Examples: Input… Read More »

November 12, 2016

Given an array arr[] such that 1 <= arr[i] <= 10^12, the task is to find prime factors of LCM of array elements. Examples: Input… Read More »

November 6, 2016

You are given a number n ( 3 <= n < 10^6 ) and you have to find nearest prime less than n? Examples: Input… Read More »

Given a number n find the smallest number evenly divisible by each number 1 to n. Examples: Input : n = 4 Output : 12… Read More »

November 4, 2016

Given Q queries, of type: L R, for each query you must print the maximum number of divisors that a number x (L <= x… Read More »

You are given two numbers a and b (1 <= a,b <= 10^8 ) and n. The task is to find all numbers between a… Read More »

October 26, 2016

Given a number n, find n’th smart number (1<=n<=1000). Smart number is a number which has at least three distinct prime factors. We are given… Read More »

October 12, 2016

Given a number n, print least prime factors of all numbers from 1 to n. The least prime factor of an integer n is the… Read More »

October 6, 2016

Given a number N, print all its unique prime factors and their powers in N. Input: N = 100 Output: Factor Power 2 2 5… Read More »

October 4, 2016

ACM ICPC(Association for Computing Machinery – International Collegiate Programming Contest) is a world-wide annual multi-tiered programming contest being organized for over thirteen years. The contest… Read More »

September 15, 2016

Given a number n, count total number of divisors of n!. Examples: Input : n = 4 Output: 24 4! is 24. Divisors of 24… Read More »