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