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