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