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