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 {21, 23, 5, 2, 15, 8} → ______
- Prime numbers in {15, 9, 23, 27, 21, 17} → ______
- Prime numbers in {3, 8, 9, 21, 11, 13} → ______
- Prime numbers in {3, 9, 8, 21, 29, 12} → ______
- Prime numbers in {19, 5, 8, 7, 9, 2} → ______
- Prime numbers in {2, 7, 5, 21, 27, 19} → ______
- Prime numbers in {23, 12, 5, 8, 7, 13} → ______
- Prime numbers in {7, 27, 17, 12, 21, 9} → ______
- Prime numbers in {23, 3, 29, 17, 21, 25} → ______
- Prime numbers in {3, 11, 13, 8, 19, 29} → ______
- Prime numbers in {25, 17, 12, 19, 7, 9} → ______
- Prime numbers in {7, 15, 29, 23, 17, 19} → ______
- Prime numbers in {25, 29, 8, 3, 17, 11} → ______
- Prime numbers in {25, 5, 7, 21, 27, 13} → ______
- Prime numbers in {5, 15, 29, 2, 3, 7} → ______
- Prime numbers in {19, 3, 11, 15, 23, 9} → ______
- Prime numbers in {12, 2, 11, 8, 13, 7} → ______
- Prime numbers in {29, 3, 12, 25, 23, 2} → ______
- Prime numbers in {5, 8, 15, 25, 21, 23} → ______
- Prime numbers in {11, 17, 29, 21, 19, 7} → ______