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