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