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