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