Is 473 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
For 473, the answer is: No, 473 is not a prime number.
The list of all positive divisors (i.e., the list of all integers that divide 473) is as follows: 1, 11, 43, 473.
For 473 to be a prime number, it would have been required that 473 has only two divisors, i.e., itself and 1.
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As a consequence:
For 473 to be a prime number, it would have been required that 473 has only two divisors, i.e., itself and 1.
However, 473 is a semiprime (also called biprime or 2-almost-prime), because it is the product of a two non-necessarily distinct prime numbers. Indeed, 473 = 11 x 43, where 11 and 43 are both prime numbers.
Is 473 a deficient number?
Yes, 473 is a deficient number, that is to say 473 is a natural number that is strictly larger than the sum of its proper divisors, i.e., the divisors of 473 without 473 itself (that is 1 + 11 + 43 = 55).