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