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