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