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