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