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