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