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