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