Algorithms

 1. Number Theory
1) Fibanacci numbers
2) Nth Fibanacci number
3) Write an Efficient Method to Check if a Number is Multiple of 3
4) isPrime
5) Sieve of Eratosthenes
6) Prime Factors
7) AP and GP
8) No of digits in a Number
9) Factorial
10) No of digits in a factorial
11) Trailing zeros in a factorial
12) Find Excel column name from a given column number 13) Palindrome numbers
14) GCD and LCM
15) Divisors of a Number
16) Modular Multiplicative Inverse
17) Given a column title as appears in an Excel sheet, return its corresponding column number.