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