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