4th, 5th, 6th Grade Anchor Charts & Posters | Prime and Composite NumbersGive your 4th, 5th, and 6th grade students clear, visual support with these easy-to-understand anchor charts and math posters. This printable resource helps students identify and differentiate prime and composite numbers with simple definitions and examples. Great for math walls, interactive notebooks, small groups, or independent study, these charts are designed to reinforce key number concepts and suppor