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