Prime Numbers and Divisibility

Improve your prime numbers and divisibility skills!

Prime Numbers and Divisibility Rules Practice is an educational game to practice, train, and drill various mathematical exercises involving prime numbers and divisibility rules. The game is simple - choose a question category, and answer questions as fast as you can. The game ends when you collect 10 correct answers (each incorrect answer is penalised 5 seconds). You can then review incorrect answers.

Prime Numbers and Divisibility Rules Practice offers various question categories, including:

• Finding the next, or the previous prime number

• Prime number factorization

• Greatest Common Divisor (finding the greatest common divisor (factor) of either two integers, or two algebraic terms)

• Least Common Multiple (finding the least common multiple of either two numbers, or two algebraic terms)

• Divisibility rules for numbers 2, 5, 10, 20, 25, 50, 100

• Divisibility rules for numbers 3, 4, 6, 8, 9, 12, 15