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