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