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