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Mathematics 26 Online
OpenStudy (anonymous):

Find The Next Number 12 13 15 17 111 113 117 119 123 ?

mathslover (mathslover):

It is 129

mathslover (mathslover):

12, 13,15,17,111,113,117,119,123,? Note that:2,3,5,7,11,13,17,19, 23 are prime no.

mathslover (mathslover):

Hence the next prime no.is 29 with prefix one we will have: 129

mathslover (mathslover):

got it?

OpenStudy (anonymous):

ya thanks!!

mathslover (mathslover):

You're welcome

OpenStudy (anonymous):

and the first number always '1?

mathslover (mathslover):

yes

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