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