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