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