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