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