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