Is 23840 a prime number?

23 840 is an even number, because it is evenly divisible by 2: 23 840 / 2 = 11 920.

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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 23 840 is about 154.402.

Thus, the square root of 23 840 is not an integer, and therefore 23 840 is not a square number.

The square of a number (here 23 840) is the result of the product of this number (23 840) by itself (i.e., 23 840 × 23 840); the square of 23 840 is sometimes called "raising 23 840 to the power 2", or "23 840 squared".

The square of 23 840 is 568 345 600 because 23 840 × 23 840 = 23 840² = 568 345 600.

As a consequence, 23 840 is the square root of 568 345 600.

23 840 is a number with 5 digits.

The multiples of 23 840 are all integers evenly divisible by 23 840, that is all numbers such that the remainder of the division by 23 840 is zero. There are infinitely many multiples of 23 840. The smallest multiples of 23 840 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 23 840 too, since 0 × 23 840 = 0
• 23 840: indeed, 23 840 is a multiple of itself, since 23 840 is evenly divisible by 23 840 (we have 23 840 / 23 840 = 1, so the remainder of this division is indeed zero)
• 47 680: indeed, 47 680 = 23 840 × 2
• 71 520: indeed, 71 520 = 23 840 × 3
• 95 360: indeed, 95 360 = 23 840 × 4
• 119 200: indeed, 119 200 = 23 840 × 5
• etc.

• Preceding numbers: …23 838, 23 839
• Following numbers: 23 841, 23 842…

Nearest numbers from 23 840

• Preceding prime number: 23 833
• Following prime number: 23 857

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• 23 840 est-il un nombre premier ?