It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 62 742 is not a prime number.
For example, 62 742 can be divided by 2: 62 742 / 2 = 31 371.
For 62 742 to be a prime number, it would have been required that 62 742 has only two divisors, i.e., itself and 1.
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62 742 is an even number, because it is evenly divisible by 2: 62 742 / 2 = 31 371.
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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 62 742 is about 250.484.
Thus, the square root of 62 742 is not an integer, and therefore 62 742 is not a square number.
The square of a number (here 62 742) is the result of the product of this number (62 742) by itself (i.e., 62 742 × 62 742); the square of 62 742 is sometimes called "raising 62 742 to the power 2", or "62 742 squared".
The square of 62 742 is 3 936 558 564 because 62 742 × 62 742 = 62 7422 = 3 936 558 564.
As a consequence, 62 742 is the square root of 3 936 558 564.
The multiples of 62 742 are all integers evenly divisible by 62 742, that is all numbers such that the remainder of the division by 62 742 is zero. There are infinitely many multiples of 62 742. The smallest multiples of 62 742 are: