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