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