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