Is 138538021 a prime number?

138 538 021 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 138 538 021 is about 11 770.218.

Thus, the square root of 138 538 021 is not an integer, and therefore 138 538 021 is not a square number.

Anyway, 138 538 021 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 138 538 021) is the result of the product of this number (138 538 021) by itself (i.e., 138 538 021 × 138 538 021); the square of 138 538 021 is sometimes called "raising 138 538 021 to the power 2", or "138 538 021 squared".

The square of 138 538 021 is 19 192 783 262 596 440 because 138 538 021 × 138 538 021 = 138 538 021² = 19 192 783 262 596 440.

As a consequence, 138 538 021 is the square root of 19 192 783 262 596 440.

138 538 021 is a number with 9 digits.

The multiples of 138 538 021 are all integers evenly divisible by 138 538 021, that is all numbers such that the remainder of the division by 138 538 021 is zero. There are infinitely many multiples of 138 538 021. The smallest multiples of 138 538 021 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 138 538 021 too, since 0 × 138 538 021 = 0
• 138 538 021: indeed, 138 538 021 is a multiple of itself, since 138 538 021 is evenly divisible by 138 538 021 (we have 138 538 021 / 138 538 021 = 1, so the remainder of this division is indeed zero)
• 277 076 042: indeed, 277 076 042 = 138 538 021 × 2
• 415 614 063: indeed, 415 614 063 = 138 538 021 × 3
• 554 152 084: indeed, 554 152 084 = 138 538 021 × 4
• 692 690 105: indeed, 692 690 105 = 138 538 021 × 5
• etc.

• Preceding numbers: …138 538 019, 138 538 020
• Following numbers: 138 538 022, 138 538 023…

Nearest numbers from 138 538 021

• Preceding prime number: 138 538 009
• Following prime number: 138 538 031

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• Est-ce que 138 538 021 est un nombre premier ?

• ¿138 538 021 es un número primo?