Is 20023 a prime number?

20 023 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 20 023 is about 141.503.

Thus, the square root of 20 023 is not an integer, and therefore 20 023 is not a square number.

Anyway, 20 023 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 20 023) is the result of the product of this number (20 023) by itself (i.e., 20 023 × 20 023); the square of 20 023 is sometimes called "raising 20 023 to the power 2", or "20 023 squared".

The square of 20 023 is 400 920 529 because 20 023 × 20 023 = 20 023² = 400 920 529.

As a consequence, 20 023 is the square root of 400 920 529.

20 023 is a number with 5 digits.

The multiples of 20 023 are all integers evenly divisible by 20 023, that is all numbers such that the remainder of the division by 20 023 is zero. There are infinitely many multiples of 20 023. The smallest multiples of 20 023 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 20 023 too, since 0 × 20 023 = 0
• 20 023: indeed, 20 023 is a multiple of itself, since 20 023 is evenly divisible by 20 023 (we have 20 023 / 20 023 = 1, so the remainder of this division is indeed zero)
• 40 046: indeed, 40 046 = 20 023 × 2
• 60 069: indeed, 60 069 = 20 023 × 3
• 80 092: indeed, 80 092 = 20 023 × 4
• 100 115: indeed, 100 115 = 20 023 × 5
• etc.

• Preceding numbers: …20 021, 20 022
• Following numbers: 20 024, 20 025…

Nearest numbers from 20 023

• Preceding prime number: 20 021
• Following prime number: 20 029

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• Five thousand prime numbers

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• 20 023 est-il un nombre premier ?