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