Is 221004 a prime number?

221 004 is an even number, because it is evenly divisible by 2: 221 004 / 2 = 110 502.

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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 221 004 is about 470.111.

Thus, the square root of 221 004 is not an integer, and therefore 221 004 is not a square number.

The square of a number (here 221 004) is the result of the product of this number (221 004) by itself (i.e., 221 004 × 221 004); the square of 221 004 is sometimes called "raising 221 004 to the power 2", or "221 004 squared".

The square of 221 004 is 48 842 768 016 because 221 004 × 221 004 = 221 004² = 48 842 768 016.

As a consequence, 221 004 is the square root of 48 842 768 016.

221 004 is a number with 6 digits.

The multiples of 221 004 are all integers evenly divisible by 221 004, that is all numbers such that the remainder of the division by 221 004 is zero. There are infinitely many multiples of 221 004. The smallest multiples of 221 004 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 221 004 too, since 0 × 221 004 = 0
• 221 004: indeed, 221 004 is a multiple of itself, since 221 004 is evenly divisible by 221 004 (we have 221 004 / 221 004 = 1, so the remainder of this division is indeed zero)
• 442 008: indeed, 442 008 = 221 004 × 2
• 663 012: indeed, 663 012 = 221 004 × 3
• 884 016: indeed, 884 016 = 221 004 × 4
• 1 105 020: indeed, 1 105 020 = 221 004 × 5
• etc.

• Preceding numbers: …221 002, 221 003
• Following numbers: 221 005, 221 006…

Nearest numbers from 221 004

• Preceding prime number: 220 973
• Following prime number: 221 021

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• 221 004 est-il un nombre premier ?