diff --git a/src/test/java/mattrixwv/TestAlgorithms.java b/src/test/java/mattrixwv/TestAlgorithms.java
index ebab570..65d3f9f 100644
--- a/src/test/java/mattrixwv/TestAlgorithms.java
+++ b/src/test/java/mattrixwv/TestAlgorithms.java
@@ -77,6 +77,56 @@ public class TestAlgorithms{
 		assertEquals("getNumPrimes BigInteger failed", bigCorrectAnswer, bigAnswer);
 	}
 	@Test
+	public void testIsPrime(){
+		//Test 1
+		int num = 2;
+		boolean correctAnswer = true;
+		boolean answer = Algorithms.isPrime(num);
+		assertEquals("isPrime Integer 1 failed", correctAnswer, answer);
+		//Test 2
+		num = 97;
+		correctAnswer = true;
+		answer = Algorithms.isPrime(num);
+		assertEquals("isPrime Integer 2 failed", correctAnswer, answer);
+		//Test 3
+		num = 1000;
+		correctAnswer = false;
+		answer = Algorithms.isPrime(num);
+		assertEquals("isPrime Integer 3 failed", correctAnswer, answer);
+
+		//Test 4
+		long longNum = 2;
+		correctAnswer = true;
+		answer = Algorithms.isPrime(longNum);
+		assertEquals("isPrime Long 1 failed", correctAnswer, answer);
+		//Test 5
+		longNum = 97;
+		correctAnswer = true;
+		answer = Algorithms.isPrime(longNum);
+		assertEquals("isPrime Long 2 failed", correctAnswer, answer);
+		//Test 6
+		longNum = 1000;
+		correctAnswer = false;
+		answer = Algorithms.isPrime(longNum);
+		assertEquals("isPrime Long 3 failed", correctAnswer, answer);
+
+		//Test 7
+		BigInteger bigNum = BigInteger.TWO;
+		correctAnswer = true;
+		answer = Algorithms.isPrime(bigNum);
+		assertEquals("isPrime BigInteger 1 failed", correctAnswer, answer);
+		//Test 8
+		bigNum = BigInteger.valueOf(97);
+		correctAnswer = true;
+		answer = Algorithms.isPrime(bigNum);
+		assertEquals("isPrime BigInteger 2 failed", correctAnswer, answer);
+		//Test 9
+		bigNum = BigInteger.valueOf(1000);
+		correctAnswer = false;
+		answer = Algorithms.isPrime(bigNum);
+		assertEquals("isPrime BigInteger 3 failed", correctAnswer, answer);
+	}
+	@Test
 	public void testGetFactors() throws InvalidResult{
 		//Test 1
 		ArrayList<Integer> correctAnswer = new ArrayList<Integer>(Arrays.asList(2, 2, 5, 5));
@@ -226,6 +276,65 @@ public class TestAlgorithms{
 		assertEquals("factorial BigInteger 4 failed", correctAnswerBig, answerBig);
 	}
 	@Test
+	public void testGCD(){
+		//Test 1
+		int num1 = 2;
+		int num2 = 3;
+		int correctAnswer = 1;
+		int answer = Algorithms.gcd(num1, num2);
+		assertEquals("testGCD Integer 1 failed", correctAnswer, answer);
+		//Test 2
+		num1 = 1000;
+		num2 = 575;
+		correctAnswer = 25;
+		answer = Algorithms.gcd(num1, num2);
+		assertEquals("testGCD Integer 2 failed", correctAnswer, answer);
+		//Test 3
+		num1 = 1000;
+		num2 = 1000;
+		correctAnswer = 1000;
+		answer = Algorithms.gcd(num1, num2);
+		assertEquals("testGCD Integer 3 failed", correctAnswer, answer);
+
+		//Test 4
+		long longNum1 = 2;
+		long longNum2 = 3;
+		long longCorrectAnswer = 1;
+		long longAnswer = Algorithms.gcd(longNum1, longNum2);
+		assertEquals("testGCD Long 1 failed", longCorrectAnswer, longAnswer);
+		//Test 5
+		longNum1 = 1000;
+		longNum2 = 575;
+		longCorrectAnswer = 25;
+		longAnswer = Algorithms.gcd(longNum1, longNum2);
+		assertEquals("testGCD Long 2 failed", longCorrectAnswer, longAnswer);
+		//Test 6
+		longNum1 = 1000;
+		longNum2 = 1000;
+		longCorrectAnswer = 1000;
+		longAnswer = Algorithms.gcd(longNum1, longNum2);
+		assertEquals("testGCD Long 3 failed", longCorrectAnswer, longAnswer);
+
+		//Test 7
+		BigInteger bigNum1 = BigInteger.TWO;
+		BigInteger bigNum2 = BigInteger.valueOf(3);
+		BigInteger bigCorrectAnswer = BigInteger.ONE;
+		BigInteger bigAnswer = Algorithms.gcd(bigNum1, bigNum2);
+		assertEquals("testGCD BigInteger 1 failed", bigCorrectAnswer, bigAnswer);
+		//Test 8
+		bigNum1 = BigInteger.valueOf(1000);
+		bigNum2 = BigInteger.valueOf(575);
+		bigCorrectAnswer = BigInteger.valueOf(25);
+		bigAnswer = Algorithms.gcd(bigNum1, bigNum2);
+		assertEquals("testGCD BigInteger 2 failed", bigCorrectAnswer, bigAnswer);
+		//Test 9
+		bigNum1 = BigInteger.valueOf(1000);
+		bigNum2 = BigInteger.valueOf(1000);
+		bigCorrectAnswer = BigInteger.valueOf(1000);
+		bigAnswer = Algorithms.gcd(bigNum1, bigNum2);
+		assertEquals("testGCD BigInteger 3 failed", bigCorrectAnswer, bigAnswer);
+	}
+	@Test
 	public void testGetSum(){
 		//Test 1
 		Integer correctAnswer = 0;