It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 720 167 is not a prime number.
For example, 720 167 can be divided by 7: 720 167 / 7 = 102 881.
For 720 167 to be a prime number, it would have been required that 720 167 has only two divisors, i.e., itself and 1.
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720 167 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 720 167 is about 848.627.
Thus, the square root of 720 167 is not an integer, and therefore 720 167 is not a square number.
The square of a number (here 720 167) is the result of the product of this number (720 167) by itself (i.e., 720 167 × 720 167); the square of 720 167 is sometimes called "raising 720 167 to the power 2", or "720 167 squared".
The square of 720 167 is 518 640 507 889 because 720 167 × 720 167 = 720 1672 = 518 640 507 889.
As a consequence, 720 167 is the square root of 518 640 507 889.
The multiples of 720 167 are all integers evenly divisible by 720 167, that is all numbers such that the remainder of the division by 720 167 is zero. There are infinitely many multiples of 720 167. The smallest multiples of 720 167 are: