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