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