Is 120391 a prime number?

120 391 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 120 391 is about 346.974.

Thus, the square root of 120 391 is not an integer, and therefore 120 391 is not a square number.

Anyway, 120 391 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 120 391) is the result of the product of this number (120 391) by itself (i.e., 120 391 × 120 391); the square of 120 391 is sometimes called "raising 120 391 to the power 2", or "120 391 squared".

The square of 120 391 is 14 493 992 881 because 120 391 × 120 391 = 120 391² = 14 493 992 881.

As a consequence, 120 391 is the square root of 14 493 992 881.

120 391 is a number with 6 digits.

The multiples of 120 391 are all integers evenly divisible by 120 391, that is all numbers such that the remainder of the division by 120 391 is zero. There are infinitely many multiples of 120 391. The smallest multiples of 120 391 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 120 391 too, since 0 × 120 391 = 0
• 120 391: indeed, 120 391 is a multiple of itself, since 120 391 is evenly divisible by 120 391 (we have 120 391 / 120 391 = 1, so the remainder of this division is indeed zero)
• 240 782: indeed, 240 782 = 120 391 × 2
• 361 173: indeed, 361 173 = 120 391 × 3
• 481 564: indeed, 481 564 = 120 391 × 4
• 601 955: indeed, 601 955 = 120 391 × 5
• etc.

• Preceding numbers: …120 389, 120 390
• Following numbers: 120 392, 120 393…

Nearest numbers from 120 391

• Preceding prime number: 120 383
• Following prime number: 120 397

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• 120 391 est-il un nombre premier ?