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