Is 21067 a prime number?

21 067 is an odd number, because it is not evenly divisible by 2.

Find out more:

• 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 21 067 is about 145.145.

Thus, the square root of 21 067 is not an integer, and therefore 21 067 is not a square number.

Anyway, 21 067 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 21 067) is the result of the product of this number (21 067) by itself (i.e., 21 067 × 21 067); the square of 21 067 is sometimes called "raising 21 067 to the power 2", or "21 067 squared".

The square of 21 067 is 443 818 489 because 21 067 × 21 067 = 21 067² = 443 818 489.

As a consequence, 21 067 is the square root of 443 818 489.

21 067 is a number with 5 digits.

The multiples of 21 067 are all integers evenly divisible by 21 067, that is all numbers such that the remainder of the division by 21 067 is zero. There are infinitely many multiples of 21 067. The smallest multiples of 21 067 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 21 067 too, since 0 × 21 067 = 0
• 21 067: indeed, 21 067 is a multiple of itself, since 21 067 is evenly divisible by 21 067 (we have 21 067 / 21 067 = 1, so the remainder of this division is indeed zero)
• 42 134: indeed, 42 134 = 21 067 × 2
• 63 201: indeed, 63 201 = 21 067 × 3
• 84 268: indeed, 84 268 = 21 067 × 4
• 105 335: indeed, 105 335 = 21 067 × 5
• etc.

• Preceding numbers: …21 065, 21 066
• Following numbers: 21 068, 21 069…

Nearest numbers from 21 067

• Preceding prime number: 21 061
• Following prime number: 21 089

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• 21 067 est-il un nombre premier ?