A number theory problem by Vaibhav Kandwal

Number Theory Level 1

What number do you get when you multiply all of the numbers on a telephone's number pad?


The answer is 0.

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Vaibhav Kandwal by Vaibhav Kandwal , 21, India

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7 solutions

Samarth Bari
Feb 19, 2015

The telephone pad has the number 0 as one of the digits. Anything multiplied by 0 gives 0

2 Helpful 0 Interesting 0 Brilliant 0 Confused

The telephone pad has the number 0 as one of the digits. Anything multiplied by 0 gives 0

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Soumya Mohapatra
Feb 20, 2015

0 times anything is 0

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Prashu Jain
Feb 19, 2015

since the telephone pad has 0 .. and anything multiply by 0 is 0.

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Gamal Sultan
Feb 19, 2015

ZERO is one of the digits of any telephone's number pad

So

The product of all digits gives ZERO

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Alen Dumo
Feb 19, 2015

1x2x3x4x5x6x7x8x9x0=0

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Phani Viashnavi
Feb 13, 2015

because anything multiplied by 0 is 0

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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