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