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