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