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