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