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