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