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