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