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