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