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