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