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