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