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