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