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