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