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