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