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