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