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