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