You are on the Home/Other Tutorials/Project Euler page Share Your

# Project Euler Problems

Project Euler contains a series of interesting problems that might stimulate one's mathematical and programming skills.  Visit it's website at www.projecteuler.net.  The links below contain solutions to the problems based on pen-and-paper, Excel, or VB(A).

The solutions are not necessarily the final answer.  Rather, they are a major step towards solving the problem.

Fair warning:  if you want to exercise your own skills first, do so before clicking the links below.

In answering the various questions, I have created a small suite of functions that should prove useful in answering still unanswered questions as well as applications outside of Project Euler.  The first set of functions deals with large number arithmetic, i.e., arithmetic for numbers that exceed both Excel and VBA's best precision.  Another "library," dubbed the Euler Support library deals with prime numbers, factors of numbers, etc.

Solved in Excel or "by hand."   VB(A) solution   Uses the Large Number Arithmetic Module Added with the last website update

 Problem 12 Problem 15 Problem 21 Problem 26 Problem 27 Problem 32 Problem 33 Problem 34 Problem 35 Problem 36 Problem 37 Problem 38 Problem 39 Problem 41 Problem 42 Problem 43 Problem 44 Problem 45 Problem 46 Problem 47 Problem 49 Problem 50 Problem 51 Problem 54 Problem 59 Problem 60 Problem 61 Problem 63 Problem 64 Problem 65 Problem 66 Problem 68 Problem 69 Problem 70 Problem 71 Problem 72 Problem 74 Problem 75 Problem 76 Problem 77 Problem 78 Problem 79 Problem 80 Problem 81 Problem 82 Problem 83 Problem 84 Problem 85 Problem 86 Problem 87 Problem 88 Problem 90 Problem 91 Problem 92 Problem 93 Problem 94 Problem 95 Problem 96 Problem 97 Problem 98 Problem 99 Problem 100 Problem 101 Problem 103 Problem 105 Problem 106 Problem 107 Problem 108 Problem 109 Problem 110 Problem 201 Problem 202 Problem 203 Problem 204 Problem 206 Problem 207 Problem 208 Problem 209 Problem 210