0
No. There are shortcuts to see if various numbers will go into it. To check for being able to divide by 3, you add all the digits together and see if 3 goes into the sum of all the digits. If the resulting number is still too big to work with, then repeat the process. So if you add 2 + 4 + 3, you get 9, and 3 goes into 9 (and thus 243 as well). Since this number can be evenly divided by 3 (81 times, by the way), it cannot be a Prime number.
Add your answer:
Earn +20 pts
Is 243 a composite number?
IS 243 PRIME OR COMPOSITE
IS 243 PRIME?
No, it's not. 243 is divisible by 3 and 81. To be prime, a number's only factors must be 1 and itself.
What is the prime number using index notation of 243?
35 = 243
Is 243 a composite number or prime number?
243 is a composite number because it has more than two factors
What is the prime factorization of the number 243?
3 x 3 x 3 x 3 x 3 = 243
What is the number 243 a prime or composite number?
243 is a composite number.
Is 243 a composite number?
IS 243 PRIME OR COMPOSITE
IS 243 PRIME?
No, it's not. 243 is divisible by 3 and 81. To be prime, a number's only factors must be 1 and itself.
Is 243 prime composite or neither?
243 is a multiple of 3, therefore it is a composite number.
What is the prime number using index notation of 243?
35 = 243
Is 243 a composite number or prime number?
243 is a composite number because it has more than two factors
What is the prime factorization of the number 243?
3 x 3 x 3 x 3 x 3 = 243
Is 243 composite or prime?
243 is a composite number. Its prime factorization is 3*3*3*3*3 or 3^5. Since it can be evenly divided by a factor other than itself and 1, 243 is a composite number.
Is 729 a prime number?
No. 729/3=243; 729/9=81
Is 243 a prime or composite?
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.
What are the fators and prime factors of 243?
The prime factors of 243 are 3 * 3 * 3 * 3 * 3 So 243 = 3^5
What is the prime factorization of 243 using exponents?
35 = 243
