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The individual digits of multiples of nine add up to 9. For example: 81, 72, and 36 are multiples of nine whose digits add up to 9.
9 x 9 = 81 --> 8 + 1 = 9
9 x 8 = 72 --> 7 + 2 = 9
9 x 4 = 36 --> 3 + 6 = 9
The same goes for larger numbers, just keep adding the digits of each answer.
9 x 48 = 432 --> 4 + 3 + 2 = 9
9 x 10488 = 94392 --> 9 + 4 + 3 + 9 + 2 = 27 --> 2 + 7 = 9
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What are multiples of 6 and 9?
The multiples of 6 is 6,12,18,24,30,36,42,48,54,60,66,72,78,84,90.................. The multiples of 9 is 9,18,27,36,45,54,63,72,81,90,99,108,117,126,135...............
What are the three frist multiples of 3 and 9?
The first three multiples of 3 are 3, 6, 9 The first three multiples of 9 are 9, 18, 27 As the lowest common multiples of 3 and 9 is 9, the common multiples of 3 and 9 are the multiples of 9, thus: The first three common multiples of 3 and 9 are 9, 18, 27
Common multiples of 9 and 10?
Common multiples of 9 and 10 are all of the multiples of 90.
Are all multiples of 9 also multiples of 3?
Yes, all multiples of 9 are also multiples of 3.but they're not all of them. Every multiple of 9 is also a multiple of 3, but there are more multiples of 3 besides those.
What numbers is multiples of 27 9 15 81 18?
Oh, what a happy little question! Multiples of 27 include 27, 54, 81, and so on. Multiples of 9 include 9, 18, 27, and more. Multiples of 15 are 15, 30, 45, and beyond. And multiples of 81 include 81, 162, 243, and many more. Just remember, each number has its own special multiples waiting to be discovered!
