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