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