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