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