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