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What numbers 2 3 5 9 divides into 123456789 evenly using divisibility rules?
3 and 9. And they divide into 123456789 whether or not you use divisibility rules!
Divisibility by 9?
If the digit sum of a number is 9 then it is divisible by 9
What are the divisibility rules for 72?
If the last 3 digits are divisible by 8 and the sum of the digits are divisible by 9.
What are the divisibility rules for 45?
If the number is divisible by both 5 and 9, then the number fits into 45 perfectly. 5- If the last digit is 0 or 5 9- If the sum of the digits are divisible by 9 Examples: 61,335, 844,560, 174,555 Non Examples: 4,122, 2085
Is 3091 divisible by 9?
No. To check divisibility by nine, sum the digits. If they add up to 9 (or a multiple of 9) then the number is divisible by 9. This trick works for 9 divisibility and 3 divisibility. In this problem: 3 + 0 + 9 + 1 = 13, which is not divisible by 9. Suppose the number was 3591: 3+5+9+1=18, which is divisible by 9 (you can check 1+8=9). You can keep summing the digits of the new numbers till you get to a number which is either 9 or some other number. (If it's 3 or 6, then the number is divisible by 3)
