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