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