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