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