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