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