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