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