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