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