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