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