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