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