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