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