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