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