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