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