343 is composite -- it has factors 1, 7, 49 and 343.
A Prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime nor composite.
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343 is not prime. 343 = 7 * 7 * 7
343 is a composite number. This is because composite numbers are any number that has more than two factors(one and itself). Therefore, since 7 and 49 are factors of 343 that makes it a composite number.
1029 is a composite number.The factors of 1029 are 1, 3, 7, 21, 49, 147, 343, 1029.
The number is not COMPOSITE. Instead, it is a prime number.
Composite (the only even number that is prime is2).