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