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