It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 42 107 121 is not a prime number.
For example, 42 107 121 can be divided by 3: 42 107 121 / 3 = 14 035 707.
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For 42 107 121 to be a prime number, it would have been required that 42 107 121 has only two divisors, i.e., itself and 1.
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42 107 121 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 42 107 121 is 6 489.
Therefore, the square root of 42 107 121 is an integer, and as a consequence 42 107 121 is a perfect square.
As a consequence, 6 489 is the square root of 42 107 121.
The square of a number (here 42 107 121) is the result of the product of this number (42 107 121) by itself (i.e., 42 107 121 × 42 107 121); the square of 42 107 121 is sometimes called "raising 42 107 121 to the power 2", or "42 107 121 squared".
The square of 42 107 121 is 1 773 009 638 908 641 because 42 107 121 × 42 107 121 = 42 107 1212 = 1 773 009 638 908 641.
As a consequence, 42 107 121 is the square root of 1 773 009 638 908 641.
42 107 121 is a number with 8 digits.
The multiples of 42 107 121 are all integers evenly divisible by 42 107 121, that is all numbers such that the remainder of the division by 42 107 121 is zero. There are infinitely many multiples of 42 107 121. The smallest multiples of 42 107 121 are: