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