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