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