27 + 540 = 567
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3³ = 3 x 3 x 3 = 27 1 x 3 x 9 = 27 1 x 1 x 27 = 27
Yes it is. If the digits of a number added together will divide exactly by three (or nine) then the number itself will also divide exactly by 3 or 9. In this case, 1+8+9=18... which is exactly divisible by 3.
9 times 3 equals 27.
Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54.Factors of 135: 1, 3, 5, 9, 15, 27, 45, 135.Factors of 189: 1, 3, 7, 9, 21, 27, 63, 189.GCF (54, 135, 189) = 27
27 x 1 = 27 = 3 x 3 x 3 = 33