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