Is 42087 a prime number?

42 087 is an odd number, because it is not evenly divisible by 2.

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• What is an even number?

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 42 087 is about 205.151.

Thus, the square root of 42 087 is not an integer, and therefore 42 087 is not a square number.

The square of a number (here 42 087) is the result of the product of this number (42 087) by itself (i.e., 42 087 × 42 087); the square of 42 087 is sometimes called "raising 42 087 to the power 2", or "42 087 squared".

The square of 42 087 is 1 771 315 569 because 42 087 × 42 087 = 42 087² = 1 771 315 569.

As a consequence, 42 087 is the square root of 1 771 315 569.

42 087 is a number with 5 digits.

The multiples of 42 087 are all integers evenly divisible by 42 087, that is all numbers such that the remainder of the division by 42 087 is zero. There are infinitely many multiples of 42 087. The smallest multiples of 42 087 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 087 too, since 0 × 42 087 = 0
• 42 087: indeed, 42 087 is a multiple of itself, since 42 087 is evenly divisible by 42 087 (we have 42 087 / 42 087 = 1, so the remainder of this division is indeed zero)
• 84 174: indeed, 84 174 = 42 087 × 2
• 126 261: indeed, 126 261 = 42 087 × 3
• 168 348: indeed, 168 348 = 42 087 × 4
• 210 435: indeed, 210 435 = 42 087 × 5
• etc.

• Preceding numbers: …42 085, 42 086
• Following numbers: 42 088, 42 089…

Nearest numbers from 42 087

• Preceding prime number: 42 083
• Following prime number: 42 089

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• 42 087 est-il un nombre premier ?