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