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