Units Digit

Number Theory Level pending

What is the units digit for:

(5)(28836)(232346)(25632342365236433)(462356323556346561436232346524364135724)(562423462356436534735682436356325724)(574734)(7)(34)(73) ?


The answer is 0.

Jungyoon Yu by Jungyoon Yu , 26, USA

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2 solutions

Sonali Srivastava
Jul 18, 2014

1st 2 nos have 5 and 6 as unit digits whose multiplication gives 0 as units digit n 0 multiplied by anything is 0 hence ans is 0

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Anuj Shikarkhane
Jul 17, 2014

See the first two numbers.The units digit will be zero.Any number multiplied by 0 is 0 only.Therefore,the answer is 0.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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