Is 161009 a prime number?

161 009 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 161 009 is about 401.259.

Thus, the square root of 161 009 is not an integer, and therefore 161 009 is not a square number.

Anyway, 161 009 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 161 009) is the result of the product of this number (161 009) by itself (i.e., 161 009 × 161 009); the square of 161 009 is sometimes called "raising 161 009 to the power 2", or "161 009 squared".

The square of 161 009 is 25 923 898 081 because 161 009 × 161 009 = 161 009² = 25 923 898 081.

As a consequence, 161 009 is the square root of 25 923 898 081.

161 009 is a number with 6 digits.

The multiples of 161 009 are all integers evenly divisible by 161 009, that is all numbers such that the remainder of the division by 161 009 is zero. There are infinitely many multiples of 161 009. The smallest multiples of 161 009 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 161 009 too, since 0 × 161 009 = 0
• 161 009: indeed, 161 009 is a multiple of itself, since 161 009 is evenly divisible by 161 009 (we have 161 009 / 161 009 = 1, so the remainder of this division is indeed zero)
• 322 018: indeed, 322 018 = 161 009 × 2
• 483 027: indeed, 483 027 = 161 009 × 3
• 644 036: indeed, 644 036 = 161 009 × 4
• 805 045: indeed, 805 045 = 161 009 × 5
• etc.

• Preceding numbers: …161 007, 161 008
• Following numbers: 161 010, 161 011…

Nearest numbers from 161 009

• Preceding prime number: 160 997
• Following prime number: 161 017

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• 161 009 est-il un nombre premier ?