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