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