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