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