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What is the number of possible 9 digit social security numbers if the digits may be repeated?
Wiki User
∙ 11y ago
If the digits may be repeated, and if the number may begin with a zero, then it's just all of
the counting numbers up to 999,999,999.
If it can't begin with a zero, then you have to throw away the first 99,999,999 and there can
only be 900,000,000.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoIf you allow the number 000000000, then there are 109 or a billion numbers.
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What is the probability of three digit numbers without repeated digits with numbers 0123456?
It is possible to create a 3-digit number, without repeated digits so the probability is 1.
How many possible 4 number combinations can you get using numbers 0-9?
0000-9999 (10x10x10x10 or 104) = 10,000 possible combinations allowing for repeated digits. If you are not able to repeat digits then it's 10 x 9 x 8 x 7 or 5,040 possible combinations without repeated digits.
How many 3 digit numbers can be formed from the digits 24578 if no digits can be repeated?
There are 5*4*3 = 60 such numbers.
How many 4 digit numbers can be formed from the digits 7341 if none of the digits can be repeated?
24
How many 3 digit numbers can be formed from the digits 357 with any digit repeated?
27 three digit numbers from the digits 3, 5, 7 including repetitions.
What is the number of possible 9 digit social security numbers if the digits can't be repeated?
9x8x7x6x5x4x3x2x1 or 9! which equals 362880 possible combinations if no digits are repeated
What is the probability of three digit numbers without repeated digits with numbers 0123456?
It is possible to create a 3-digit number, without repeated digits so the probability is 1.
How many 6 digit numbers can be formed form the digits 123456 if no digits can be repeated?
6*5*4*3*2*1=720 possible numbers
How many possible 3 digit numbers can be made using the digits 604?
There are 4 possible numbers if the digits are not repeated; 18 if they are. Those are 3-digit numbers, assuming that zero would not be a leading digit. If zero is allowed for a leading digit, then you can have 6 for the non repeated, and 27 if repetition.
What are the possible combinations of the digits 0 through 9 if number may be repeated in the sequence?
Infinite. If numbers can be repeated, the list could go on nonstop.
What is the greatest five digits even numbers with no repeated digits?
98,764
How many possible 4 number combinations can you get using numbers 0-9?
0000-9999 (10x10x10x10 or 104) = 10,000 possible combinations allowing for repeated digits. If you are not able to repeat digits then it's 10 x 9 x 8 x 7 or 5,040 possible combinations without repeated digits.
How many 6-digits telephone numbers can have one or more repeated digits?
763920
How many 3 digit numbers can be formed from the digits 24578 if no digits can be repeated?
There are 5*4*3 = 60 such numbers.
How many three digit numbers have no repeated digits?
757
How many 3 digit numbers can be made out of the numbers 1 2 3 and 4?
With repeated digits, 43 = 64 Without repeated digits, 4*3*2 = 24
How many 4 digit numbers can be formed from the digits 7341 if none of the digits can be repeated?
24
