60. There are 5 different choices for the first digit, four for the second digit, and three choices for the third digit. According to the fundamental counting principle, you multiply them together to get the total number of possible ways, and 5 x 4 x 3 = 60 Another way to think about it is 5!/3!
> 9999876 Actually, 9999876 has four different digits (6, 7, 8, 9). The largest 7-digit number with three different digits is 9999987.
1634, 8208 and 9474 See related link.
-3612
1 3 4 9
2178
300
3333
2400
Well, friend, when you add two two-digit numbers together, the sum will always be a two-digit number or a three-digit number, not a four-digit number. It's like mixing different colors on your palette - you'll get a beautiful new shade, but it won't be something completely different. Just keep adding those numbers together and creating something wonderful!
I think you mean, the largest four digit number that has exactly three divisors. 2X3X1663=9,978
Any three digit number which is in the four times table. E.g 100, 104, 108 ... 992, 996.
Four. (100 x 10 = 1,000)
999 - 1000
It can have one . . . 1.0 x 1.0 = 1 It can have two . . . 1.0 x 0.1 = 0.1 It can have three . . . 10 x 10 = 100 It can have four . . . 99 x 99 = 9801 and .01 x .01 = .0001
If there is a decimal placed somewhere within the number, such as .3568 could be rounded to .357
You're looking for a 4-digit number that is divisible by 11 and 17. Multiply them together. Put a zero on the end. 1870