Added problem 3

src/Problems/Problem3.rs

@@ -0,0 +1,55 @@
+//ProjectEulerRust/src/Problems/Problems3.rs
+//Matthew Ellison
+// Created: 06-13-20
+//Modified: 06-13-20
+//The largest prime factor of 600851475143
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
+/*
+	Copyright (C) 2019  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/>.
+*/
+
+
+extern crate myClasses;
+use crate::Problems::Answer::Answer;
+
+extern crate num;
+
+
+pub fn getDescription() -> String{
+	"What is the largest prime factor of 600851475143?".to_string()
+}
+
+pub fn solve() -> Answer{
+	//Setup the number
+	let number = "600851475143".parse::<num::BigInt>().unwrap();
+	//Start the timer
+	let mut timer = myClasses::Stopwatch::Stopwatch::new();
+	timer.start();
+
+	//Get all the factors of the number
+	let factors = myClasses::Algorithms::getFactorsBig(num::BigInt::new(number.sign(), number.to_u32_digits().1));
+	//The last element should be the largest factor
+
+	//Stop the timer
+	timer.stop();
+
+	//Save the results
+	return Answer::new(format!("The largest factor of the number {} is {}", number, factors.last().unwrap()), timer.getString());
+}
+
+/* Results:
+
+*/