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