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