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