Is 37821 a prime number?

37 821 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 37 821 is about 194.476.

Thus, the square root of 37 821 is not an integer, and therefore 37 821 is not a square number.

The square of a number (here 37 821) is the result of the product of this number (37 821) by itself (i.e., 37 821 × 37 821); the square of 37 821 is sometimes called "raising 37 821 to the power 2", or "37 821 squared".

The square of 37 821 is 1 430 428 041 because 37 821 × 37 821 = 37 821² = 1 430 428 041.

As a consequence, 37 821 is the square root of 1 430 428 041.

37 821 is a number with 5 digits.

The multiples of 37 821 are all integers evenly divisible by 37 821, that is all numbers such that the remainder of the division by 37 821 is zero. There are infinitely many multiples of 37 821. The smallest multiples of 37 821 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 37 821 too, since 0 × 37 821 = 0
• 37 821: indeed, 37 821 is a multiple of itself, since 37 821 is evenly divisible by 37 821 (we have 37 821 / 37 821 = 1, so the remainder of this division is indeed zero)
• 75 642: indeed, 75 642 = 37 821 × 2
• 113 463: indeed, 113 463 = 37 821 × 3
• 151 284: indeed, 151 284 = 37 821 × 4
• 189 105: indeed, 189 105 = 37 821 × 5
• etc.

• Preceding numbers: …37 819, 37 820
• Following numbers: 37 822, 37 823…

Nearest numbers from 37 821

• Preceding prime number: 37 813
• Following prime number: 37 831

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• 37 821 est-il un nombre premier ?