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