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