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