How would the arithmetic? - Division

Number Theory Level pending

Look:

3 ∥ 5 = 1 3\parallel 5=1

7 ∥ 14 = 7 7\parallel 14=7

3 ∥ 15 = 15 3\parallel 15=15

15 ∥ 20 = 5 15\parallel 20=5

17 ∥ 34 = 17 17\parallel 34=17

Find: 64 ∥ 30 64 \parallel 30


The answer is 2.

Victor Paes Plinio by Victor Paes Plinio , 21, Brazil

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1 solution

This problem is asking for the greatest common factor of 64 and 30.

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greatest common factor of 3 and 15 is not 15 as given in the question. so this answer to the question does not make sense.

Syed Riaz Mahmood - 6 years, 11 months ago

Then shouldn't

3 ∥ 15 = 3 3 \parallel 15 = 3

Be true not

3 ∥ 15 = 15 3 \parallel 15 = 15

Jack Rawlin - 6 years, 5 months ago

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