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