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