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