Is 20143 a prime number?

20 143 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 20 143 is about 141.926.

Thus, the square root of 20 143 is not an integer, and therefore 20 143 is not a square number.

Anyway, 20 143 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 20 143) is the result of the product of this number (20 143) by itself (i.e., 20 143 × 20 143); the square of 20 143 is sometimes called "raising 20 143 to the power 2", or "20 143 squared".

The square of 20 143 is 405 740 449 because 20 143 × 20 143 = 20 143² = 405 740 449.

As a consequence, 20 143 is the square root of 405 740 449.

20 143 is a number with 5 digits.

The multiples of 20 143 are all integers evenly divisible by 20 143, that is all numbers such that the remainder of the division by 20 143 is zero. There are infinitely many multiples of 20 143. The smallest multiples of 20 143 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 20 143 too, since 0 × 20 143 = 0
• 20 143: indeed, 20 143 is a multiple of itself, since 20 143 is evenly divisible by 20 143 (we have 20 143 / 20 143 = 1, so the remainder of this division is indeed zero)
• 40 286: indeed, 40 286 = 20 143 × 2
• 60 429: indeed, 60 429 = 20 143 × 3
• 80 572: indeed, 80 572 = 20 143 × 4
• 100 715: indeed, 100 715 = 20 143 × 5
• etc.

• Preceding numbers: …20 141, 20 142
• Following numbers: 20 144, 20 145…

Nearest numbers from 20 143

• Preceding prime number: 20 129
• Following prime number: 20 147

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• Five thousand prime numbers

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• 20 143 est-il un nombre premier ?