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