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