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