It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 102 107 421 is not a prime number.
For example, 102 107 421 can be divided by 3: 102 107 421 / 3 = 34 035 807.
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For 102 107 421 to be a prime number, it would have been required that 102 107 421 has only two divisors, i.e., itself and 1.
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102 107 421 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 102 107 421 is about 10 104.822.
Thus, the square root of 102 107 421 is not an integer, and therefore 102 107 421 is not a square number.
The square of a number (here 102 107 421) is the result of the product of this number (102 107 421) by itself (i.e., 102 107 421 × 102 107 421); the square of 102 107 421 is sometimes called "raising 102 107 421 to the power 2", or "102 107 421 squared".
The square of 102 107 421 is 10 425 925 423 271 240 because 102 107 421 × 102 107 421 = 102 107 4212 = 10 425 925 423 271 240.
As a consequence, 102 107 421 is the square root of 10 425 925 423 271 240.
102 107 421 is a number with 9 digits.
The multiples of 102 107 421 are all integers evenly divisible by 102 107 421, that is all numbers such that the remainder of the division by 102 107 421 is zero. There are infinitely many multiples of 102 107 421. The smallest multiples of 102 107 421 are: