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