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