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