Is 1388 a prime number?

1 388 is an even number, because it is evenly divisible by 2: 1 388 / 2 = 694.

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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 1 388 is about 37.256.

Thus, the square root of 1 388 is not an integer, and therefore 1 388 is not a square number.

The square of a number (here 1 388) is the result of the product of this number (1 388) by itself (i.e., 1 388 × 1 388); the square of 1 388 is sometimes called "raising 1 388 to the power 2", or "1 388 squared".

The square of 1 388 is 1 926 544 because 1 388 × 1 388 = 1 388² = 1 926 544.

As a consequence, 1 388 is the square root of 1 926 544.

1 388 is a number with 4 digits.

The multiples of 1 388 are all integers evenly divisible by 1 388, that is all numbers such that the remainder of the division by 1 388 is zero. There are infinitely many multiples of 1 388. The smallest multiples of 1 388 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 1 388 too, since 0 × 1 388 = 0
• 1 388: indeed, 1 388 is a multiple of itself, since 1 388 is evenly divisible by 1 388 (we have 1 388 / 1 388 = 1, so the remainder of this division is indeed zero)
• 2 776: indeed, 2 776 = 1 388 × 2
• 4 164: indeed, 4 164 = 1 388 × 3
• 5 552: indeed, 5 552 = 1 388 × 4
• 6 940: indeed, 6 940 = 1 388 × 5
• etc.

• Preceding numbers: …1 386, 1 387
• Following numbers: 1 389, 1 390…

Nearest numbers from 1 388

• Preceding prime number: 1 381
• Following prime number: 1 399

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• 1 388 est-il un nombre premier ?