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