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