It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 35 987 is not a prime number.
For example, 35 987 can be divided by 7: 35 987 / 7 = 5 141.
For 35 987 to be a prime number, it would have been required that 35 987 has only two divisors, i.e., itself and 1.
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35 987 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 35 987 is about 189.702.
Thus, the square root of 35 987 is not an integer, and therefore 35 987 is not a square number.
The square of a number (here 35 987) is the result of the product of this number (35 987) by itself (i.e., 35 987 × 35 987); the square of 35 987 is sometimes called "raising 35 987 to the power 2", or "35 987 squared".
The square of 35 987 is 1 295 064 169 because 35 987 × 35 987 = 35 9872 = 1 295 064 169.
As a consequence, 35 987 is the square root of 1 295 064 169.
The multiples of 35 987 are all integers evenly divisible by 35 987, that is all numbers such that the remainder of the division by 35 987 is zero. There are infinitely many multiples of 35 987. The smallest multiples of 35 987 are: