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