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