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