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