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