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