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