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