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How many two-digit numbers are divisible by each of their digits?

 Nov 25, 2019

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a=1;b=1;p=0; cycle:d=a*10+b;if(d%a==0 and d%b==0, goto loop, goto next); loop:printd," ",;p=p+1; next:b++;if(b<10, goto cycle, 0);b=1;a++;if(a<10, goto cycle, 0);print"Total = ",p

 

11  12  15  22  24  33  36  44  48  55  66  77  88  99  Total =  14 such numbers

 Nov 26, 2019
 #1
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a=1;b=1;p=0; cycle:d=a*10+b;if(d%a==0 and d%b==0, goto loop, goto next); loop:printd," ",;p=p+1; next:b++;if(b<10, goto cycle, 0);b=1;a++;if(a<10, goto cycle, 0);print"Total = ",p

 

11  12  15  22  24  33  36  44  48  55  66  77  88  99  Total =  14 such numbers

Guest Nov 26, 2019

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