Is 61009 a prime number?

61 009 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 61 009 is 247.

Therefore, the square root of 61 009 is an integer, and as a consequence 61 009 is a perfect square.

As a consequence, 247 is the square root of 61 009.

The square of a number (here 61 009) is the result of the product of this number (61 009) by itself (i.e., 61 009 × 61 009); the square of 61 009 is sometimes called "raising 61 009 to the power 2", or "61 009 squared".

The square of 61 009 is 3 722 098 081 because 61 009 × 61 009 = 61 009² = 3 722 098 081.

As a consequence, 61 009 is the square root of 3 722 098 081.

61 009 is a number with 5 digits.

The multiples of 61 009 are all integers evenly divisible by 61 009, that is all numbers such that the remainder of the division by 61 009 is zero. There are infinitely many multiples of 61 009. The smallest multiples of 61 009 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 61 009 too, since 0 × 61 009 = 0
• 61 009: indeed, 61 009 is a multiple of itself, since 61 009 is evenly divisible by 61 009 (we have 61 009 / 61 009 = 1, so the remainder of this division is indeed zero)
• 122 018: indeed, 122 018 = 61 009 × 2
• 183 027: indeed, 183 027 = 61 009 × 3
• 244 036: indeed, 244 036 = 61 009 × 4
• 305 045: indeed, 305 045 = 61 009 × 5
• etc.

• Preceding numbers: …61 007, 61 008
• Following numbers: 61 010, 61 011…

Nearest numbers from 61 009

• Preceding prime number: 61 007
• Following prime number: 61 027

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• 61 009 est-il un nombre premier ?