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