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