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