It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 74 494 138 is not a prime number.
For example, 74 494 138 can be divided by 2: 74 494 138 / 2 = 37 247 069.
For 74 494 138 to be a prime number, it would have been required that 74 494 138 has only two divisors, i.e., itself and 1.
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74 494 138 is an even number, because it is evenly divisible by 2: 74 494 138 / 2 = 37 247 069.
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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 74 494 138 is about 8 630.999.
Thus, the square root of 74 494 138 is not an integer, and therefore 74 494 138 is not a square number.
The square of a number (here 74 494 138) is the result of the product of this number (74 494 138) by itself (i.e., 74 494 138 × 74 494 138); the square of 74 494 138 is sometimes called "raising 74 494 138 to the power 2", or "74 494 138 squared".
The square of 74 494 138 is 5 549 376 596 363 044 because 74 494 138 × 74 494 138 = 74 494 1382 = 5 549 376 596 363 044.
As a consequence, 74 494 138 is the square root of 5 549 376 596 363 044.
74 494 138 is a number with 8 digits.
The multiples of 74 494 138 are all integers evenly divisible by 74 494 138, that is all numbers such that the remainder of the division by 74 494 138 is zero. There are infinitely many multiples of 74 494 138. The smallest multiples of 74 494 138 are: