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