Is 82821 a prime number?

82 821 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 82 821 is about 287.786.

Thus, the square root of 82 821 is not an integer, and therefore 82 821 is not a square number.

The square of a number (here 82 821) is the result of the product of this number (82 821) by itself (i.e., 82 821 × 82 821); the square of 82 821 is sometimes called "raising 82 821 to the power 2", or "82 821 squared".

The square of 82 821 is 6 859 318 041 because 82 821 × 82 821 = 82 821² = 6 859 318 041.

As a consequence, 82 821 is the square root of 6 859 318 041.

82 821 is a number with 5 digits.

The multiples of 82 821 are all integers evenly divisible by 82 821, that is all numbers such that the remainder of the division by 82 821 is zero. There are infinitely many multiples of 82 821. The smallest multiples of 82 821 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 82 821 too, since 0 × 82 821 = 0
• 82 821: indeed, 82 821 is a multiple of itself, since 82 821 is evenly divisible by 82 821 (we have 82 821 / 82 821 = 1, so the remainder of this division is indeed zero)
• 165 642: indeed, 165 642 = 82 821 × 2
• 248 463: indeed, 248 463 = 82 821 × 3
• 331 284: indeed, 331 284 = 82 821 × 4
• 414 105: indeed, 414 105 = 82 821 × 5
• etc.

• Preceding numbers: …82 819, 82 820
• Following numbers: 82 822, 82 823…

Nearest numbers from 82 821

• Preceding prime number: 82 813
• Following prime number: 82 837

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• 82 821 est-il un nombre premier ?