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