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