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