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