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