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