It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 738 213 is not a prime number.
For example, 738 213 can be divided by 3: 738 213 / 3 = 246 071.
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For 738 213 to be a prime number, it would have been required that 738 213 has only two divisors, i.e., itself and 1.
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738 213 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 738 213 is about 859.193.
Thus, the square root of 738 213 is not an integer, and therefore 738 213 is not a square number.
The square of a number (here 738 213) is the result of the product of this number (738 213) by itself (i.e., 738 213 × 738 213); the square of 738 213 is sometimes called "raising 738 213 to the power 2", or "738 213 squared".
The square of 738 213 is 544 958 433 369 because 738 213 × 738 213 = 738 2132 = 544 958 433 369.
As a consequence, 738 213 is the square root of 544 958 433 369.
The multiples of 738 213 are all integers evenly divisible by 738 213, that is all numbers such that the remainder of the division by 738 213 is zero. There are infinitely many multiples of 738 213. The smallest multiples of 738 213 are: