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