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