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