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