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