Is 4000005 a prime number?

4 000 005 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 4 000 005 is about 2 000.001.

Thus, the square root of 4 000 005 is not an integer, and therefore 4 000 005 is not a square number.

The square of a number (here 4 000 005) is the result of the product of this number (4 000 005) by itself (i.e., 4 000 005 × 4 000 005); the square of 4 000 005 is sometimes called "raising 4 000 005 to the power 2", or "4 000 005 squared".

The square of 4 000 005 is 16 000 040 000 025 because 4 000 005 × 4 000 005 = 4 000 005² = 16 000 040 000 025.

As a consequence, 4 000 005 is the square root of 16 000 040 000 025.

4 000 005 is a number with 7 digits.

The multiples of 4 000 005 are all integers evenly divisible by 4 000 005, that is all numbers such that the remainder of the division by 4 000 005 is zero. There are infinitely many multiples of 4 000 005. The smallest multiples of 4 000 005 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 4 000 005 too, since 0 × 4 000 005 = 0
• 4 000 005: indeed, 4 000 005 is a multiple of itself, since 4 000 005 is evenly divisible by 4 000 005 (we have 4 000 005 / 4 000 005 = 1, so the remainder of this division is indeed zero)
• 8 000 010: indeed, 8 000 010 = 4 000 005 × 2
• 12 000 015: indeed, 12 000 015 = 4 000 005 × 3
• 16 000 020: indeed, 16 000 020 = 4 000 005 × 4
• 20 000 025: indeed, 20 000 025 = 4 000 005 × 5
• etc.

• Preceding numbers: …4 000 003, 4 000 004
• Following numbers: 4 000 006, 4 000 007…

Nearest numbers from 4 000 005

• Preceding prime number: 3 999 971
• Following prime number: 4 000 037

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• 4 000 005 est-il un nombre premier ?