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