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