It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 400 701 is not a prime number.
For example, 400 701 can be divided by 3: 400 701 / 3 = 133 567.
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For 400 701 to be a prime number, it would have been required that 400 701 has only two divisors, i.e., itself and 1.
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400 701 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 400 701 is about 633.009.
Thus, the square root of 400 701 is not an integer, and therefore 400 701 is not a square number.
The square of a number (here 400 701) is the result of the product of this number (400 701) by itself (i.e., 400 701 × 400 701); the square of 400 701 is sometimes called "raising 400 701 to the power 2", or "400 701 squared".
The square of 400 701 is 160 561 291 401 because 400 701 × 400 701 = 400 7012 = 160 561 291 401.
As a consequence, 400 701 is the square root of 160 561 291 401.
The multiples of 400 701 are all integers evenly divisible by 400 701, that is all numbers such that the remainder of the division by 400 701 is zero. There are infinitely many multiples of 400 701. The smallest multiples of 400 701 are: