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