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