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