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