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