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