Is 398721013 a prime number?

398 721 013 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 398 721 013 is about 19 968.000.

Thus, the square root of 398 721 013 is not an integer, and therefore 398 721 013 is not a square number.

Anyway, 398 721 013 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 398 721 013) is the result of the product of this number (398 721 013) by itself (i.e., 398 721 013 × 398 721 013); the square of 398 721 013 is sometimes called "raising 398 721 013 to the power 2", or "398 721 013 squared".

The square of 398 721 013 is 158 978 446 207 746 176 because 398 721 013 × 398 721 013 = 398 721 013² = 158 978 446 207 746 176.

As a consequence, 398 721 013 is the square root of 158 978 446 207 746 176.

398 721 013 is a number with 9 digits.

The multiples of 398 721 013 are all integers evenly divisible by 398 721 013, that is all numbers such that the remainder of the division by 398 721 013 is zero. There are infinitely many multiples of 398 721 013. The smallest multiples of 398 721 013 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 398 721 013 too, since 0 × 398 721 013 = 0
• 398 721 013: indeed, 398 721 013 is a multiple of itself, since 398 721 013 is evenly divisible by 398 721 013 (we have 398 721 013 / 398 721 013 = 1, so the remainder of this division is indeed zero)
• 797 442 026: indeed, 797 442 026 = 398 721 013 × 2
• 1 196 163 039: indeed, 1 196 163 039 = 398 721 013 × 3
• 1 594 884 052: indeed, 1 594 884 052 = 398 721 013 × 4
• 1 993 605 065: indeed, 1 993 605 065 = 398 721 013 × 5
• etc.

• Preceding numbers: …398 721 011, 398 721 012
• Following numbers: 398 721 014, 398 721 015…

Nearest numbers from 398 721 013

• Preceding prime number: 398 721 007
• Following prime number: 398 721 047

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• 398 721 013 est-il un nombre premier ?