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