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