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