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