A nine-digit number that is divisible by 2, 3, 4, 5, 6, 8, 9 and 10 is 518,400,000. This number is found by multiplying 2 x 3 x 4 x 5 x 6 x 8 x 9 x 10 x 10 x 10.
Continue ReadingOther nine-digit numbers divisible by the above list of factors include 340,122,240 and 265,420,800. These numbers are found by first multiplying all of the factors together to get 518,400. This number is then multiplied by one or more of the factors. The multiplication by additional factors is repeated until the resulting product is greater than 99,000,000 and contains nine digits.
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