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