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