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