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