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