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Is every number that is divisible by 6 divisible by 3?
Yes, it's true. 3 is one of the factors of 6, so any number that has six as a factor also has 3 as a factor.
How do you know when a number has 6 as a factor?
First you add up all of the digit's, and then divide. If 6 fits in it, then 3 also fits in it, but not 9. (For ex. Is 6 a factor of 674. 6+7+4=17, 17/6=2.8. so no, 6 is not a factor of 674) If your number is even and divisible by three, it's divisible by 6.
If the last digit of a number is 6 then is 6 a factor?
Not necessarily. For example, the number 56 ends in a 6 but is not divisible by six. To check if a number is divisible by six, the number must be divisible by both 2 and 3. To check this, the last digit must be even and the sum of the digits must be divisible by three. If the number meets these conditions, it is in fact divisible by six.
What is the divisible by 6?
If a number is divisible by 2 and 3, it is divisible by 6.
What 4 digit number is divisible by 5 and 6 but not 6?
There can be no such number. If it is divisible by 5 and 6it must be divisible by 6.
