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