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