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