It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 74 201 642 is not a prime number.
For example, 74 201 642 can be divided by 2: 74 201 642 / 2 = 37 100 821.
For 74 201 642 to be a prime number, it would have been required that 74 201 642 has only two divisors, i.e., itself and 1.
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74 201 642 is an even number, because it is evenly divisible by 2: 74 201 642 / 2 = 37 100 821.
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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 74 201 642 is about 8 614.037.
Thus, the square root of 74 201 642 is not an integer, and therefore 74 201 642 is not a square number.
The square of a number (here 74 201 642) is the result of the product of this number (74 201 642) by itself (i.e., 74 201 642 × 74 201 642); the square of 74 201 642 is sometimes called "raising 74 201 642 to the power 2", or "74 201 642 squared".
The square of 74 201 642 is 5 505 883 675 496 164 because 74 201 642 × 74 201 642 = 74 201 6422 = 5 505 883 675 496 164.
As a consequence, 74 201 642 is the square root of 5 505 883 675 496 164.
74 201 642 is a number with 8 digits.
The multiples of 74 201 642 are all integers evenly divisible by 74 201 642, that is all numbers such that the remainder of the division by 74 201 642 is zero. There are infinitely many multiples of 74 201 642. The smallest multiples of 74 201 642 are: