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