There are infinitely many multiples of 3, 5 and 9; they are multiples of their lowest common multiple (which is 45), take your pick of one from:
45, 90, 135, 180, 225, 270, 315, 360, 405, 450, 495, 540, 585, 630, 675, 720, 765, 810, 855, 900, 945, 990, 1035, 1080, 1125, 1170, 1215, 1260, 1305, 1350, 1395, 1440, 1485, 1530, 1575, 1620, 1665, 1710, 1755, 1800, 1845, 1890, 1935, 1980, 2025, 2070, 2115, 2160, 2205, 2250, 2295, 2340, 2385, 2430, 2475, 2520, 2565, 2610, 2655, 2700, 2745, 2790, 2835, 2880, 2925, 2970, 3015, 3060, 3105, 3150, 3195, 3240, 3285, 3330, 3375, 3420, 3465, 3510, 3555, 3600, 3645, 3690, 3735, 3780, 3825, 3870, 3915, 3960, 4005, 4050, 4095, 4140, 4185, 4230, 4275, 4320, 4365, 4410, 4455, 4500, ...
(The one of those which is 3 × 5 × 9 is 135.)
The least common multiple (LCM) of 3, 5, and 9 is 45.
9 is a multiple of 3. It is 3 x 3.
3*5*7
Yes, the quotient is 99 when you divide by three, but to check for divisibility (by 3 or 9), do this: If the sum of the digits is a multiple of 3 [9], then the number is a multiple of 3 [9]. This only works for 3 and 9. So for 297: 2+9+7 = 18, which is a multiple of 9 and 3, so it is a multiple of 3 (and a multiple of 9, as well; though the question didn't ask for that).
The third multiple of 3 can be calculated by multiplying 3 by 3, which equals 9. In this case, the third multiple of 3 is 9. In general, to find the nth multiple of a number, you would multiply the number by n.
45 is the least common multiple of 3, 5 and 9.
The least common multiple (LCM) of 3, 5, and 9 is 45.
90 is the least common multiple of 5, 9, 18, and 3.
Least Common Multiple (LCM) for 5 3 9 10 is 90
Which number is a factor of 10 , but not a multiple of 5
Yes. The sum of the digits of 153 is 1 + 5 + 3 = 9, a multiple of 9.
The LCM of 3, 5, 9, and 15 is 45.
45
If the digital sum of a number does not add up to 9 then it is not a multiple of 9 as for example 153 is a multiple of 9 because 1+5+3 = 9
LCM(9, 12, 5, 3) = 180.
900 is the least common multiple of 2, 3, 4, 5, 9, and 100.
The smallest multiple 3 and 9 have in common is 9. 2/3 becomes 6/9 and 5/9 does not change