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Add up the digits of the number. If the sum is divisible by 3, then the number itself is divisible by 3. Ex: Is 781 divisible by 3? 7+8+1=16 16 is not divisible by 3 so neither is 781 Is 903 divisible by 3? 9+0+3= 12 12 is divisible by 3 so 903 is divisible by 3

Q: How do you know if 3 goes into a number?

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1 goes into 3 and 4.

3 3 goes into 3 once and 96 32 times :)

Besides 1, the number 3 goes into both 9 and 42. 9/3=3 and 42/3=14

The number is 1.

3 does, 339 / 3 = 113.

Related questions

1 goes into 3 and 4.

The only number that goes into both 3 and 4 is 1.

3 3 goes into 3 once and 96 32 times :)

Besides 1, the number 3 goes into both 9 and 42. 9/3=3 and 42/3=14

The number is 1.

The number 3 goes into both 6 and 33 (6/3 = 2, 33/3 = 11)

i dont know if it counts as a mixed number but 3 should be the answer because 7 goes into 21 EVENLY 3 times and there is nothing left over.

The number 3

The highest number that goes into both 90 and 147 is 3.

3 does, 339 / 3 = 113.

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