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