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