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