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