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