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