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