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