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