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