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