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