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