6 significant digits.
By doing the math in your head on a piece of paper or with your fingers. You should know 3, 6, and 9 are multiples of three, but for 2-digit numbers or larger you can add the digits and if they equal 3, 6, or 9 then they are multiples of 3. For example, 15 would be 1 + 5, which is 6, so it's a multiple of 3.
1532354351
14 and 814-8=6 14+8=22
181
6 significant digits.
I suggest you do the divisions. If you get an integer, it is a multiple. If you get digits after a decimal point, it is not.18 18 is a multiple of 6 because it can be evenly divided by 6 to equal 3. 20 is not a multiple of 6 because it cannot be evenly divided by 6. 20/6 = 3.3333... .
6.0?
The answer is 6. (Here, the no. of digits = 1. Thus, Six times the no. of digits= 6 x 1 = 6)
By doing the math in your head on a piece of paper or with your fingers. You should know 3, 6, and 9 are multiples of three, but for 2-digit numbers or larger you can add the digits and if they equal 3, 6, or 9 then they are multiples of 3. For example, 15 would be 1 + 5, which is 6, so it's a multiple of 3.
If a number is divisible by 2 (an even number) and 3 (the sum of the digits is divisible by 3) then the number is divisible by 6.
If you add up the two digits and they make either 3, 6, or 9
They're all multiples of 1, 2, 3 and 6.
1532354351
There are 31 of them.
16 is not equal to 312. Other variations of these digits, such as 1/6 and 3/12 are not equal either.
3 , 6 , 9 , 12 , 15