Project_Euler_1

gistfile1.txt

{
 "metadata": {
  "name": ""
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.\n",
      "\n",
      "Find the sum of all the multiples of 3 or 5 below 1000."
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "multiplesof3_or_5 = []\n",
      "sum_numbers = 0\n",
      "for num in range(1,1000):\n",
      "    if num%3==0 or num%5==0:\n",
      "        sum_numbers = sum_numbers + num\n",
      "\n",
      "sum_numbers = 0\n",
      "for number in multiplesof3_or_5:\n",
      "    sum_numbers = sum_numbers + number\n",
      "\n",
      "print(sum_numbers)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "233168\n"
       ]
      }
     ],
     "prompt_number": 79
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "sum(multiplesof3_or_5)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 81,
       "text": [
        "233168"
       ]
      }
     ],
     "prompt_number": 81
    }
   ],
   "metadata": {}
  }
 ]
}