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