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