Before asking whether a number is a Prime number, please first try to divide it by some small prime numbers - for example, by 2, 3, 5, 7.
IS 243 PRIME OR COMPOSITE
243 is a composite number.
243 is a multiple of 3, therefore it is a composite number.
243 is a composite number because it has more than two factors
243 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1, 2, and 0. 1, 2, and 0 have a different name.
No because they are both composite numbers
Composite; its factors are 1, 3, 9, 27, 81, 243, 729
729 is composite because it has 7 factors: 1, 3, 9, 27, 81, 243, and 729.
243 is a composite number because it has factors other than 1 and itself. The factors of 243 are 1, 3, 9, 27, 81, and 243.
No.
neither prime or composite
It is prime