Well, let's take a look at this happy little math problem. If we divide 45 by 7, we find that it equals 6 with a remainder of 3. Since there is a remainder, 45 is not a multiple of 7. Don't worry, mistakes are just happy little accidents along the way to learning something new.
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If a multiple of 10 were a factor of 45, then both '10' and the multiple would be factors of 45. Since 10 is not a factor of 45, there is no such number.There are no multiples of 10 that are factors of 45.
45 / 3 = 15 15 x 3 = 45 So 45 is a multiple of 3.
45 9, 18, 27, 36, 45... 45 is the first multiple of 9 that is divisible by 5.
There is no multiple of 10 that's a factor of 45.
45 is one one multiple of 9; it is 9 X 5.