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