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