Multiple choice general knowledge math & puzzles 1, 4, 9, 25, ?? 48 64 49 50 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The sequence consists of the squares of prime numbers: 1^2 (though 1 is not prime, it's often included), 2^2=4, 3^2=9, 5^2=25. The next prime is 7, and 7^2 = 49. 64 (8^2) and 50 are incorrect as they don't follow the prime square pattern.