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