Is 998640 a prime number?

998 640 is an even number, because it is evenly divisible by 2: 998 640 / 2 = 499 320.

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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 998 640 is about 999.320.

Thus, the square root of 998 640 is not an integer, and therefore 998 640 is not a square number.

The square of a number (here 998 640) is the result of the product of this number (998 640) by itself (i.e., 998 640 × 998 640); the square of 998 640 is sometimes called "raising 998 640 to the power 2", or "998 640 squared".

The square of 998 640 is 997 281 849 600 because 998 640 × 998 640 = 998 640² = 997 281 849 600.

As a consequence, 998 640 is the square root of 997 281 849 600.

998 640 is a number with 6 digits.

The multiples of 998 640 are all integers evenly divisible by 998 640, that is all numbers such that the remainder of the division by 998 640 is zero. There are infinitely many multiples of 998 640. The smallest multiples of 998 640 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 998 640 too, since 0 × 998 640 = 0
• 998 640: indeed, 998 640 is a multiple of itself, since 998 640 is evenly divisible by 998 640 (we have 998 640 / 998 640 = 1, so the remainder of this division is indeed zero)
• 1 997 280: indeed, 1 997 280 = 998 640 × 2
• 2 995 920: indeed, 2 995 920 = 998 640 × 3
• 3 994 560: indeed, 3 994 560 = 998 640 × 4
• 4 993 200: indeed, 4 993 200 = 998 640 × 5
• etc.

• Preceding numbers: …998 638, 998 639
• Following numbers: 998 641, 998 642…

Nearest numbers from 998 640

• Preceding prime number: 998 633
• Following prime number: 998 651

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• 998 640 est-il un nombre premier ?