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