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