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