Is 999491 a prime number?

999 491 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 999 491 is about 999.745.

Thus, the square root of 999 491 is not an integer, and therefore 999 491 is not a square number.

Anyway, 999 491 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 999 491) is the result of the product of this number (999 491) by itself (i.e., 999 491 × 999 491); the square of 999 491 is sometimes called "raising 999 491 to the power 2", or "999 491 squared".

The square of 999 491 is 998 982 259 081 because 999 491 × 999 491 = 999 491² = 998 982 259 081.

As a consequence, 999 491 is the square root of 998 982 259 081.

999 491 is a number with 6 digits.

The multiples of 999 491 are all integers evenly divisible by 999 491, that is all numbers such that the remainder of the division by 999 491 is zero. There are infinitely many multiples of 999 491. The smallest multiples of 999 491 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 999 491 too, since 0 × 999 491 = 0
• 999 491: indeed, 999 491 is a multiple of itself, since 999 491 is evenly divisible by 999 491 (we have 999 491 / 999 491 = 1, so the remainder of this division is indeed zero)
• 1 998 982: indeed, 1 998 982 = 999 491 × 2
• 2 998 473: indeed, 2 998 473 = 999 491 × 3
• 3 997 964: indeed, 3 997 964 = 999 491 × 4
• 4 997 455: indeed, 4 997 455 = 999 491 × 5
• etc.

• Preceding numbers: …999 489, 999 490
• Following numbers: 999 492, 999 493…

Nearest numbers from 999 491

• Preceding prime number: 999 451
• Following prime number: 999 499

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• 999 491 est-il un nombre premier ?