Best Answer

You have 9 options for the first position (all except zero); 9 options for the second position (any digit except the digit used for the first position; 8 options for the third position; 7 options for the fourth position; 6 options for the fifth position; and 5 options for the sixth position. Multiply everything together.

Q: How many six digit numbers are there without repeating digits?

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24

256

Without repeating digits (not digets!) and without leading 0s, 600 of them.

60

It is a repeating decimal.

Related questions

256

24

18, if leading 0s are disallowed.

Without repeating digits (not digets!) and without leading 0s, 600 of them.

98765

60

468, 486, 648, 684, 846, 864.

86420

It is a repeating decimal.

-58264

4 x 3 x 2 ie 24

5040