Is 9840 a prime number?

9 840 is an even number, because it is evenly divisible by 2: 9 840 / 2 = 4 920.

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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 9 840 is about 99.197.

Thus, the square root of 9 840 is not an integer, and therefore 9 840 is not a square number.

The square of a number (here 9 840) is the result of the product of this number (9 840) by itself (i.e., 9 840 × 9 840); the square of 9 840 is sometimes called "raising 9 840 to the power 2", or "9 840 squared".

The square of 9 840 is 96 825 600 because 9 840 × 9 840 = 9 840² = 96 825 600.

As a consequence, 9 840 is the square root of 96 825 600.

9 840 is a number with 4 digits.

The multiples of 9 840 are all integers evenly divisible by 9 840, that is all numbers such that the remainder of the division by 9 840 is zero. There are infinitely many multiples of 9 840. The smallest multiples of 9 840 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 9 840 too, since 0 × 9 840 = 0
• 9 840: indeed, 9 840 is a multiple of itself, since 9 840 is evenly divisible by 9 840 (we have 9 840 / 9 840 = 1, so the remainder of this division is indeed zero)
• 19 680: indeed, 19 680 = 9 840 × 2
• 29 520: indeed, 29 520 = 9 840 × 3
• 39 360: indeed, 39 360 = 9 840 × 4
• 49 200: indeed, 49 200 = 9 840 × 5
• etc.

• Preceding numbers: …9 838, 9 839
• Following numbers: 9 841, 9 842…

Nearest numbers from 9 840

• Preceding prime number: 9 839
• Following prime number: 9 851

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• 9 840 est-il un nombre premier ?