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