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