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