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