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