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