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