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