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