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