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