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