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