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