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