Is 21016 a prime number?

21 016 is an even number, because it is evenly divisible by 2: 21 016 / 2 = 10 508.

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 21 016 is about 144.969.

Thus, the square root of 21 016 is not an integer, and therefore 21 016 is not a square number.

The square of a number (here 21 016) is the result of the product of this number (21 016) by itself (i.e., 21 016 × 21 016); the square of 21 016 is sometimes called "raising 21 016 to the power 2", or "21 016 squared".

The square of 21 016 is 441 672 256 because 21 016 × 21 016 = 21 016² = 441 672 256.

As a consequence, 21 016 is the square root of 441 672 256.

21 016 is a number with 5 digits.

The multiples of 21 016 are all integers evenly divisible by 21 016, that is all numbers such that the remainder of the division by 21 016 is zero. There are infinitely many multiples of 21 016. The smallest multiples of 21 016 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 21 016 too, since 0 × 21 016 = 0
• 21 016: indeed, 21 016 is a multiple of itself, since 21 016 is evenly divisible by 21 016 (we have 21 016 / 21 016 = 1, so the remainder of this division is indeed zero)
• 42 032: indeed, 42 032 = 21 016 × 2
• 63 048: indeed, 63 048 = 21 016 × 3
• 84 064: indeed, 84 064 = 21 016 × 4
• 105 080: indeed, 105 080 = 21 016 × 5
• etc.

• Preceding numbers: …21 014, 21 015
• Following numbers: 21 017, 21 018…

Nearest numbers from 21 016

• Preceding prime number: 21 013
• Following prime number: 21 017

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• 21 016 est-il un nombre premier ?