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