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