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