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