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