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