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