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