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