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