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