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