It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 212 429 is not a prime number.
For example, 212 429 can be divided by 7: 212 429 / 7 = 30 347.
For 212 429 to be a prime number, it would have been required that 212 429 has only two divisors, i.e., itself and 1.
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212 429 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 212 429 is about 460.900.
Thus, the square root of 212 429 is not an integer, and therefore 212 429 is not a square number.
The square of a number (here 212 429) is the result of the product of this number (212 429) by itself (i.e., 212 429 × 212 429); the square of 212 429 is sometimes called "raising 212 429 to the power 2", or "212 429 squared".
The square of 212 429 is 45 126 080 041 because 212 429 × 212 429 = 212 4292 = 45 126 080 041.
As a consequence, 212 429 is the square root of 45 126 080 041.
The multiples of 212 429 are all integers evenly divisible by 212 429, that is all numbers such that the remainder of the division by 212 429 is zero. There are infinitely many multiples of 212 429. The smallest multiples of 212 429 are: