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