What grade teaches prime numbers?
Could you please clarify for me which grade level typically introduces the concept of prime numbers in the math curriculum? I'm curious to know at which stage of education students are expected to learn about these special numbers and how they factor into more advanced mathematical concepts. Is it during the elementary, middle, or high school years? Additionally, I'd like to know if there's a specific grade level where prime numbers are often emphasized or if the concept is introduced gradually across multiple grades.