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