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