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