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