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