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