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