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