It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 167 987 521 is not a prime number.
For example, 167 987 521 can be divided by 13: 167 987 521 / 13 = 12 922 117.
For 167 987 521 to be a prime number, it would have been required that 167 987 521 has only two divisors, i.e., itself and 1.
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167 987 521 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 167 987 521 is 12 961.
Therefore, the square root of 167 987 521 is an integer, and as a consequence 167 987 521 is a perfect square.
As a consequence, 12 961 is the square root of 167 987 521.
The square of a number (here 167 987 521) is the result of the product of this number (167 987 521) by itself (i.e., 167 987 521 × 167 987 521); the square of 167 987 521 is sometimes called "raising 167 987 521 to the power 2", or "167 987 521 squared".
The square of 167 987 521 is 28 219 807 211 725 440 because 167 987 521 × 167 987 521 = 167 987 5212 = 28 219 807 211 725 440.
As a consequence, 167 987 521 is the square root of 28 219 807 211 725 440.
167 987 521 is a number with 9 digits.
The multiples of 167 987 521 are all integers evenly divisible by 167 987 521, that is all numbers such that the remainder of the division by 167 987 521 is zero. There are infinitely many multiples of 167 987 521. The smallest multiples of 167 987 521 are: