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