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