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