Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {9, 3, 19, 17, 12, 23} → ______
- Prime numbers in {23, 8, 11, 2, 27, 15} → ______
- Prime numbers in {25, 23, 29, 13, 27, 21} → ______
- Prime numbers in {21, 27, 19, 3, 5, 12} → ______
- Prime numbers in {9, 15, 21, 5, 12, 3} → ______
- Prime numbers in {23, 8, 12, 25, 9, 15} → ______
- Prime numbers in {3, 23, 5, 25, 21, 11} → ______
- Prime numbers in {19, 2, 13, 7, 3, 11} → ______
- Prime numbers in {29, 27, 3, 13, 9, 7} → ______
- Prime numbers in {21, 27, 7, 5, 11, 2} → ______
- Prime numbers in {5, 23, 12, 17, 27, 9} → ______
- Prime numbers in {5, 13, 2, 15, 21, 23} → ______
- Prime numbers in {9, 5, 7, 3, 17, 12} → ______
- Prime numbers in {8, 12, 3, 2, 11, 13} → ______
- Prime numbers in {3, 15, 8, 11, 12, 29} → ______
- Prime numbers in {29, 13, 19, 3, 7, 21} → ______
- Prime numbers in {21, 13, 25, 7, 12, 15} → ______
- Prime numbers in {21, 23, 5, 11, 3, 29} → ______
- Prime numbers in {17, 12, 29, 2, 23, 21} → ______
- Prime numbers in {12, 8, 9, 15, 25, 17} → ______