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