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