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