Is 20129 a prime number?

20 129 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 20 129 is about 141.877.

Thus, the square root of 20 129 is not an integer, and therefore 20 129 is not a square number.

Anyway, 20 129 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 20 129) is the result of the product of this number (20 129) by itself (i.e., 20 129 × 20 129); the square of 20 129 is sometimes called "raising 20 129 to the power 2", or "20 129 squared".

The square of 20 129 is 405 176 641 because 20 129 × 20 129 = 20 129² = 405 176 641.

As a consequence, 20 129 is the square root of 405 176 641.

20 129 is a number with 5 digits.

The multiples of 20 129 are all integers evenly divisible by 20 129, that is all numbers such that the remainder of the division by 20 129 is zero. There are infinitely many multiples of 20 129. The smallest multiples of 20 129 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 20 129 too, since 0 × 20 129 = 0
• 20 129: indeed, 20 129 is a multiple of itself, since 20 129 is evenly divisible by 20 129 (we have 20 129 / 20 129 = 1, so the remainder of this division is indeed zero)
• 40 258: indeed, 40 258 = 20 129 × 2
• 60 387: indeed, 60 387 = 20 129 × 3
• 80 516: indeed, 80 516 = 20 129 × 4
• 100 645: indeed, 100 645 = 20 129 × 5
• etc.

• Preceding numbers: …20 127, 20 128
• Following numbers: 20 130, 20 131…

Nearest numbers from 20 129

• Preceding prime number: 20 123
• Following prime number: 20 143

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• Five thousand prime numbers

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• 20 129 est-il un nombre premier ?