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