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