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