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