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