Number Theory Quiz Test your knowledge on number theory with this quiz featuring 11 challenging questions. rihanna80 published on August 21 Stacked 1/11 Which of the following is a prime number? 17 18 21 25 2/11 What is the greatest common divisor of 24 and 36? 12 8 6 4 3/11 What is the smallest prime number? 2 1 3 4 4/11 What is the sum of the first 5 prime numbers? 28 20 24 30 5/11 Which of the following is a perfect number? 28 24 20 30 6/11 What is the next number in the Fibonacci sequence after 8? 13 11 15 18 7/11 How many digits are in the number 1000? 4 3 2 5 8/11 Which of the following is a composite number? 15 17 19 23 9/11 What is the product of the first 3 prime numbers? 30 24 36 40 10/11 What is the square root of 64? 8 6 10 12 11/11 What is the 7th prime number? 17 13 19 23