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