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