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