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