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