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