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