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