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