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