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