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