Is 123491 a prime number?

123 491 is an odd number, because it is not evenly divisible by 2.

Find out more:

• 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 123 491 is about 351.413.

Thus, the square root of 123 491 is not an integer, and therefore 123 491 is not a square number.

Anyway, 123 491 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 123 491) is the result of the product of this number (123 491) by itself (i.e., 123 491 × 123 491); the square of 123 491 is sometimes called "raising 123 491 to the power 2", or "123 491 squared".

The square of 123 491 is 15 250 027 081 because 123 491 × 123 491 = 123 491² = 15 250 027 081.

As a consequence, 123 491 is the square root of 15 250 027 081.

123 491 is a number with 6 digits.

The multiples of 123 491 are all integers evenly divisible by 123 491, that is all numbers such that the remainder of the division by 123 491 is zero. There are infinitely many multiples of 123 491. The smallest multiples of 123 491 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 123 491 too, since 0 × 123 491 = 0
• 123 491: indeed, 123 491 is a multiple of itself, since 123 491 is evenly divisible by 123 491 (we have 123 491 / 123 491 = 1, so the remainder of this division is indeed zero)
• 246 982: indeed, 246 982 = 123 491 × 2
• 370 473: indeed, 370 473 = 123 491 × 3
• 493 964: indeed, 493 964 = 123 491 × 4
• 617 455: indeed, 617 455 = 123 491 × 5
• etc.

• Preceding numbers: …123 489, 123 490
• Following numbers: 123 492, 123 493…

Nearest numbers from 123 491

• Preceding prime number: 123 479
• Following prime number: 123 493

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• 123 491 est-il un nombre premier ?