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