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