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