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