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