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