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