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