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