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605 is composite. (All whole numbers ending in 5 are composite numbers, except the number 5 itself.).

Q: Is 605 is a prime number?

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No, because you can divide 605 by 5.

For a number to be divisible by another number it must be at least that number. As 3 is less than 605 it cannot be divisible by 605. Also 3 is not a FACTOR of 605, that is 3 does not divide into 605 without remainder.

4,840 / 8 = 605

5 x 11 x 11

7 is a prime number!

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No, because you can divide 605 by 5.

5 x 11 x 11 = 605

The factors of 605 are: 1 5 11 55 121 605 The prime factors are: 5 x 11 x 11 The prime factorisation of 605 goes as follows: 605 is not evenly divisible by 2 or by 3. 605 divided by 5 gives 121 121 is not evenly divisible by 5, or by 7. 121 divided by 11 gives 11 11 divided by 11 gives 1. So, the prime factors of 605 are 5, 11 and 11.

The prime factorisation of 605 goes as follows: 605 is not evenly divisible by 2 or by 3. 605 divided by 5 gives 121 121 is not evenly divisible by 5, or by 7. 121 divided by 11 gives 11 11 divided by 11 gives 1. So, the prime factors of 605 are 5, 11 and 11.

For a number to be divisible by another number it must be at least that number. As 3 is less than 605 it cannot be divisible by 605. Also 3 is not a FACTOR of 605, that is 3 does not divide into 605 without remainder.

Composite divisible by at least 5

4,840 / 8 = 605

It is a composite number, not a prime number.

5 x 11 x 11

5 x 11 x 11

Yes.

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