It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 142 121 267 is not a prime number.
For example, 142 121 267 can be divided by 31: 142 121 267 / 31 = 4 584 557.
For 142 121 267 to be a prime number, it would have been required that 142 121 267 has only two divisors, i.e., itself and 1.
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142 121 267 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 142 121 267 is about 11 921.462.
Thus, the square root of 142 121 267 is not an integer, and therefore 142 121 267 is not a square number.
The square of a number (here 142 121 267) is the result of the product of this number (142 121 267) by itself (i.e., 142 121 267 × 142 121 267); the square of 142 121 267 is sometimes called "raising 142 121 267 to the power 2", or "142 121 267 squared".
The square of 142 121 267 is 20 198 454 533 685 288 because 142 121 267 × 142 121 267 = 142 121 2672 = 20 198 454 533 685 288.
As a consequence, 142 121 267 is the square root of 20 198 454 533 685 288.
142 121 267 is a number with 9 digits.
The multiples of 142 121 267 are all integers evenly divisible by 142 121 267, that is all numbers such that the remainder of the division by 142 121 267 is zero. There are infinitely many multiples of 142 121 267. The smallest multiples of 142 121 267 are: