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