Is 80491 a prime number?

80 491 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 80 491 is about 283.709.

Thus, the square root of 80 491 is not an integer, and therefore 80 491 is not a square number.

Anyway, 80 491 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 80 491) is the result of the product of this number (80 491) by itself (i.e., 80 491 × 80 491); the square of 80 491 is sometimes called "raising 80 491 to the power 2", or "80 491 squared".

The square of 80 491 is 6 478 801 081 because 80 491 × 80 491 = 80 491² = 6 478 801 081.

As a consequence, 80 491 is the square root of 6 478 801 081.

80 491 is a number with 5 digits.

The multiples of 80 491 are all integers evenly divisible by 80 491, that is all numbers such that the remainder of the division by 80 491 is zero. There are infinitely many multiples of 80 491. The smallest multiples of 80 491 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 80 491 too, since 0 × 80 491 = 0
• 80 491: indeed, 80 491 is a multiple of itself, since 80 491 is evenly divisible by 80 491 (we have 80 491 / 80 491 = 1, so the remainder of this division is indeed zero)
• 160 982: indeed, 160 982 = 80 491 × 2
• 241 473: indeed, 241 473 = 80 491 × 3
• 321 964: indeed, 321 964 = 80 491 × 4
• 402 455: indeed, 402 455 = 80 491 × 5
• etc.

• Preceding numbers: …80 489, 80 490
• Following numbers: 80 492, 80 493…

Nearest numbers from 80 491

• Preceding prime number: 80 489
• Following prime number: 80 513

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• 80 491 est-il un nombre premier ?