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