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