Is 9920 a prime number?

9 920 is an even number, because it is evenly divisible by 2: 9 920 / 2 = 4 960.

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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 9 920 is about 99.599.

Thus, the square root of 9 920 is not an integer, and therefore 9 920 is not a square number.

The square of a number (here 9 920) is the result of the product of this number (9 920) by itself (i.e., 9 920 × 9 920); the square of 9 920 is sometimes called "raising 9 920 to the power 2", or "9 920 squared".

The square of 9 920 is 98 406 400 because 9 920 × 9 920 = 9 920² = 98 406 400.

As a consequence, 9 920 is the square root of 98 406 400.

9 920 is a number with 4 digits.

The multiples of 9 920 are all integers evenly divisible by 9 920, that is all numbers such that the remainder of the division by 9 920 is zero. There are infinitely many multiples of 9 920. The smallest multiples of 9 920 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 9 920 too, since 0 × 9 920 = 0
• 9 920: indeed, 9 920 is a multiple of itself, since 9 920 is evenly divisible by 9 920 (we have 9 920 / 9 920 = 1, so the remainder of this division is indeed zero)
• 19 840: indeed, 19 840 = 9 920 × 2
• 29 760: indeed, 29 760 = 9 920 × 3
• 39 680: indeed, 39 680 = 9 920 × 4
• 49 600: indeed, 49 600 = 9 920 × 5
• etc.

• Preceding numbers: …9 918, 9 919
• Following numbers: 9 921, 9 922…

Nearest numbers from 9 920

• Preceding prime number: 9 907
• Following prime number: 9 923

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• 9 920 est-il un nombre premier ?