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