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