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