MathTables by PalaSoftware vs GCD and LCM

MathTables is a powerful and fun twist to learning arithmetic. With normal math problem tables you need to provide the answer to the problem. With MathTables there is a twist, both the problem and the answer are provided, you just need to match the answer to the correct problem. Math tables is perfect for any level of learning or any age of student. MathTables is configurable to quiz you with 12, 20 or 30 problems. All the problems are generated by the iPhone and randomized so there is a virtual unlimited set of possibilities. MathTables allows you to choose individual operation types from addition, subtraction, multiplication division, squares, cubes and square roots or a combination of the above. You can also provide a range of numbers (from -99 to 99) you want to work with. Parents you will find this feature invaluable for helping younger students who need to limit the scope of problems they are currently capable of handling. Additionally, MathTables has a timer thus allowing a single student the opportunity to see if he can improve on a previous time, or even challenge a friend to a "quiz-off". MathTables is a great brain exercise, use it a few minutes each day and watch your math improve over time.

GCD and LCM calculator - calculate the Greatest Common Factor/Greatest Common Divisor and the Least Common Multiple. The app finds the greatest common divisor (GCD)/greatest common factor (GCF) and Least Common Multiple (LCM) of two, three numbers and four numbers. Finds the prime factorization of numbers and shows it in the standard and exponential forms. Just enter two, three or four integers and tap "Calculate". The app lists all factors and identifies the common ones. Keeps calculation history. Sends results and history via email. Supports both portrait and landscape orientation.