It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 995 221 is not a prime number.
For example, 240 995 221 can be divided by 19: 240 995 221 / 19 = 12 683 959.
For 240 995 221 to be a prime number, it would have been required that 240 995 221 has only two divisors, i.e., itself and 1.
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240 995 221 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 240 995 221 is about 15 524.021.
Thus, the square root of 240 995 221 is not an integer, and therefore 240 995 221 is not a square number.
The square of a number (here 240 995 221) is the result of the product of this number (240 995 221) by itself (i.e., 240 995 221 × 240 995 221); the square of 240 995 221 is sometimes called "raising 240 995 221 to the power 2", or "240 995 221 squared".
The square of 240 995 221 is 58 078 696 544 838 840 because 240 995 221 × 240 995 221 = 240 995 2212 = 58 078 696 544 838 840.
As a consequence, 240 995 221 is the square root of 58 078 696 544 838 840.
240 995 221 is a number with 9 digits.
The multiples of 240 995 221 are all integers evenly divisible by 240 995 221, that is all numbers such that the remainder of the division by 240 995 221 is zero. There are infinitely many multiples of 240 995 221. The smallest multiples of 240 995 221 are: