Is 642007 a prime number?

642 007 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 642 007 is about 801.253.

Thus, the square root of 642 007 is not an integer, and therefore 642 007 is not a square number.

The square of a number (here 642 007) is the result of the product of this number (642 007) by itself (i.e., 642 007 × 642 007); the square of 642 007 is sometimes called "raising 642 007 to the power 2", or "642 007 squared".

The square of 642 007 is 412 172 988 049 because 642 007 × 642 007 = 642 007² = 412 172 988 049.

As a consequence, 642 007 is the square root of 412 172 988 049.

642 007 is a number with 6 digits.

The multiples of 642 007 are all integers evenly divisible by 642 007, that is all numbers such that the remainder of the division by 642 007 is zero. There are infinitely many multiples of 642 007. The smallest multiples of 642 007 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 642 007 too, since 0 × 642 007 = 0
• 642 007: indeed, 642 007 is a multiple of itself, since 642 007 is evenly divisible by 642 007 (we have 642 007 / 642 007 = 1, so the remainder of this division is indeed zero)
• 1 284 014: indeed, 1 284 014 = 642 007 × 2
• 1 926 021: indeed, 1 926 021 = 642 007 × 3
• 2 568 028: indeed, 2 568 028 = 642 007 × 4
• 3 210 035: indeed, 3 210 035 = 642 007 × 5
• etc.

• Preceding numbers: …642 005, 642 006
• Following numbers: 642 008, 642 009…

Nearest numbers from 642 007

• Preceding prime number: 641 981
• Following prime number: 642 011

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• 642 007 est-il un nombre premier ?