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