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