Added solution to problem 5

ProblemSelection.ts

@@ -28,11 +28,12 @@ import { Problem1 } from "./Problems/Problem1";
 import { Problem2 } from "./Problems/Problem2";
 import { Problem3 } from "./Problems/Problem3";
 import { Problem4 } from "./Problems/Problem4";
+import { Problem5 } from "./Problems/Problem5";
 
 
 export class ProblemSelection{
 	//Holds the valid problem numbers
-	public static PROBLEM_NUMBERS: number[] = [1, 2, 3, 4];
+	public static PROBLEM_NUMBERS: number[] = [1, 2, 3, 4, 5];
 
 	//Returns the problem corresponding to the given problem number
 	public static getProblem(problemNumber: number): Problem{
@@ -42,6 +43,7 @@ export class ProblemSelection{
 			case 2 : problem = new Problem2(); break;
 			case 3 : problem = new Problem3(); break;
 			case 4 : problem = new Problem4(); break;
+			case 5 : problem = new Problem5(); break;
 		}
 		return problem;
 	}

Problems/Problem5.ts

@@ -0,0 +1,104 @@
+//ProjectEulerTS/Problems/Problem5.ts
+//Matthew Ellison
+// Created: 10-26-20
+//Modified: 10-26-20
+//What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/typescriptClasses
+/*
+	Copyright (C) 2020  Matthew Ellison
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+
+import { Problem } from "./Problem";
+import { Unsolved } from "../Unsolved";
+
+
+export class Problem5 extends Problem{
+	//Variables
+	//Instance variables
+	private smallestNum: number;	//The smallest number that is found
+
+	//Funmctions
+	//Constructor
+	public constructor(){
+		super("What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?");
+		this.smallestNum = 0;
+	}
+	//Operational functions
+	//Solve the problem
+	public solve(): void{
+		//If the problem has already been solved do nothing and end the function
+		if(this.solved){
+			return;
+		}
+
+		//Start the timer
+		this.timer.start();
+
+		//Start at 20 because it must at least be divisible by 20. Increment by 2 because it must be an even number to be divisible by 2
+		let numFound: boolean = false;	//A flag for finding the divisible number
+		let currentNum: number = 20;	//The number that it is currently checking against
+		while((currentNum > 0) && (!numFound)){
+			//Start by assuming you found the number (because we throw a flag if we didn't find it)
+			numFound = true;
+			//Step through every number from 1-20 seeing if the current number is divisible by it
+			for(let divisor: number = 1;divisor <= 20;++divisor){
+				//If it is not divisible then throw a flag and start looking at the next number
+				if((currentNum % divisor) != 0){
+					numFound = false;
+					break;
+				}
+			}
+			//If you didn't find the correct number then increment by 2
+			if(!numFound){
+				currentNum += 2;
+			}
+		}
+
+		this.smallestNum = currentNum
+
+		//Stop the timer
+		this.timer.stop();
+
+		//Throw a flag to show the problem is solved
+		this.solved = true;
+	}
+	//Reset the problem so it can be run again
+	public reset(): void{
+		super.reset();
+		this.smallestNum = 0;
+	}
+	//Gets
+	//Returns the result of solving the problem
+	public getResult(): string{
+		if(!this.solved){
+			throw new Unsolved();
+		}
+		return `The smallest positive number evenly divisible by all number 1-20 is ${this.smallestNum}`;
+	}
+	//Returns the requested number
+	public getNumber(): number{
+		if(!this.solved){
+			throw new Unsolved();
+		}
+		return this.smallestNum;
+	}
+}
+
+/* Results:
+The smallest positive number evenly divisible by all number 1-20 is 232792560
+It took an average of 892.378 milliseconds to run this problem through 100 iterations
+*/