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