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