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