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