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