It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 48 213 is not a prime number.
For example, 48 213 can be divided by 3: 48 213 / 3 = 16 071.
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For 48 213 to be a prime number, it would have been required that 48 213 has only two divisors, i.e., itself and 1.
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48 213 is an odd number, because it is not evenly divisible by 2.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 48 213 is about 219.575.
Thus, the square root of 48 213 is not an integer, and therefore 48 213 is not a square number.
The square of a number (here 48 213) is the result of the product of this number (48 213) by itself (i.e., 48 213 × 48 213); the square of 48 213 is sometimes called "raising 48 213 to the power 2", or "48 213 squared".
The square of 48 213 is 2 324 493 369 because 48 213 × 48 213 = 48 2132 = 2 324 493 369.
As a consequence, 48 213 is the square root of 2 324 493 369.
The multiples of 48 213 are all integers evenly divisible by 48 213, that is all numbers such that the remainder of the division by 48 213 is zero. There are infinitely many multiples of 48 213. The smallest multiples of 48 213 are: