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I'm going to say 30, because it has three prime factors (2 x 3 x 5) while the other numbers have two prime factors: (10 = 2 x 5, and 55 = 11 x 5).

Q: Which number does not belong 10 30 or 55?

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55 has no 3 factor

55, the rest are divisible by 3

A Kaprekar number is a number whose square can be split into two parts whose sum is the the original number. Both parts must be positive.For example, 55^2 = 3025 and 30+25 = 55.This is an example in base 10. Kaprekar also defined his number for other bases.

The tenth triangular number is equal to (10 x 11) / 2 = 55.

55 = (5 x 10) + (5 x 1)

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55/30 =125/3055/30:= 55÷30= 1 remainder 25= 1 25/30

55 has no 3 factor

(55 / 55) + (55 / 55) x 5 = 10

55 because it is not a multiple of 3

55, the rest are divisible by 3

Halfway between 30 and 80 is (30 + 80) ÷ 2 = 55.

Manganese is a metal element. Atomic mass number of it is 55.

The only such number between 55 and 101 is 80.

1, 2, 3, 5, 6, 10, 15, 30 1, 5, 11, 55

10 goes into 55 5 times. 5 is left over which is half of 10 so 10 goes into 55 exactly 5.5 times.

Wheel of Fortune - 1983 Secret Santa Sweepstakes 10 30-55 was released on: USA: 30 November 2012

30% off of 55 = 38.530% off of 55= 30% discount applied to 55= 55 - (30% * 55)= 55 - (0.30 * 55)= 55 - 16.5= 38.5