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