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