Is 1445 a prime number?

1 445 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 1 445 is about 38.013.

Thus, the square root of 1 445 is not an integer, and therefore 1 445 is not a square number.

The square of a number (here 1 445) is the result of the product of this number (1 445) by itself (i.e., 1 445 × 1 445); the square of 1 445 is sometimes called "raising 1 445 to the power 2", or "1 445 squared".

The square of 1 445 is 2 088 025 because 1 445 × 1 445 = 1 445² = 2 088 025.

As a consequence, 1 445 is the square root of 2 088 025.

1 445 is a number with 4 digits.

The multiples of 1 445 are all integers evenly divisible by 1 445, that is all numbers such that the remainder of the division by 1 445 is zero. There are infinitely many multiples of 1 445. The smallest multiples of 1 445 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 1 445 too, since 0 × 1 445 = 0
• 1 445: indeed, 1 445 is a multiple of itself, since 1 445 is evenly divisible by 1 445 (we have 1 445 / 1 445 = 1, so the remainder of this division is indeed zero)
• 2 890: indeed, 2 890 = 1 445 × 2
• 4 335: indeed, 4 335 = 1 445 × 3
• 5 780: indeed, 5 780 = 1 445 × 4
• 7 225: indeed, 7 225 = 1 445 × 5
• etc.

• Preceding numbers: …1 443, 1 444
• Following numbers: 1 446, 1 447…

Nearest numbers from 1 445

• Preceding prime number: 1 439
• Following prime number: 1 447

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• 1 445 est-il un nombre premier ?