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