Is 742409 a prime number?

742 409 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 742 409 is about 861.632.

Thus, the square root of 742 409 is not an integer, and therefore 742 409 is not a square number.

Anyway, 742 409 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 742 409) is the result of the product of this number (742 409) by itself (i.e., 742 409 × 742 409); the square of 742 409 is sometimes called "raising 742 409 to the power 2", or "742 409 squared".

The square of 742 409 is 551 171 123 281 because 742 409 × 742 409 = 742 409² = 551 171 123 281.

As a consequence, 742 409 is the square root of 551 171 123 281.

742 409 is a number with 6 digits.

The multiples of 742 409 are all integers evenly divisible by 742 409, that is all numbers such that the remainder of the division by 742 409 is zero. There are infinitely many multiples of 742 409. The smallest multiples of 742 409 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 742 409 too, since 0 × 742 409 = 0
• 742 409: indeed, 742 409 is a multiple of itself, since 742 409 is evenly divisible by 742 409 (we have 742 409 / 742 409 = 1, so the remainder of this division is indeed zero)
• 1 484 818: indeed, 1 484 818 = 742 409 × 2
• 2 227 227: indeed, 2 227 227 = 742 409 × 3
• 2 969 636: indeed, 2 969 636 = 742 409 × 4
• 3 712 045: indeed, 3 712 045 = 742 409 × 5
• etc.

• Preceding numbers: …742 407, 742 408
• Following numbers: 742 410, 742 411…

Nearest numbers from 742 409

• Preceding prime number: 742 393
• Following prime number: 742 439

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• 742 409 est-il un nombre premier ?