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Best Answer

59

add a Prime number

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47,

53, 59, 61, 67, 71, 73, 79, 83, 89, 97

are those under 100

3 - 1 = 2

6 - 3 = 3

11 - 6 = 5

18 - 11 = 7

29 - 18 = 11

42 - 29 = 13

so 17 is next then 42 + 17 = 59

which continues 78 101 140 171 208 249 292 339 and so on ...

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Wiki User

6y ago
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Wiki User

15y ago

easy - 60 because all you did was multiply be three then on the next number you divided by two.

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Wiki User

13y ago

108

The series is three repeating steps of multiply by 3, divide by 2, multiply by 2; then again, multiply by 3, divide by 2, multiply by 2; etc.

36 times 3 is 108.

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Wiki User

11y ago

The next number would be 10

60 / 1 = 60

60 / 2 = 30

60 / 3 = 20

60 / 4 = 15

60 / 5 = 12

60 / 6 = 10

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Anonymous

Lvl 1
3y ago

108

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Q: What is the next number 4 12 6 12 36 18 36 20?
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