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