Latest CAT Aptitude Question SOLUTION: The number of prime factors of 1510 x 3137 x 18712

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(#M40011745) CAT question Keep an EYE

The number of prime factors of
1510 x 3137 x 18712

Asked In CAT amit garg (11 years ago)

Unsolved Read Solution (9)

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Read Solution (9) :

PARAG KAMRA  (11 years ago)

sorry i did a silly mistake in prev sol'n
the factor of 1510 is 151*5*2,total factor are 3

the factor of 3137 is 3137 ,the total are 1 factors

the factor of 18712 is 2339*2*2*2 ,the total are 4 factors

so total number of factors is (3+1)(1+1)(4+1) is 4*2*5=40 prime factors(ans)

Is this solution Helpfull? Yes (8) | No (1)  

darshan tumballi  (11 years ago)

asked is no of PRIME factors
so just add up
3+1+4=8..

Is this solution Helpfull? Yes (2) | No (1)  

PARAG KAMRA  (11 years ago)

the factor of 1510 is 151*2*2,total factor are 3

the factor of 3137 is 1049*3 ,the total are 2 factors

the factor of 18712 is 2339*2*2*2 ,the total are 4 factors

so total number of factors is (3+1)(2+1)(4+1) is 4*3*5=60 prime factors(ans)

Is this solution Helpfull? Yes (1) | No (6)  

amit garg  (11 years ago)

@parag u have siven the ans for number of factors..
not the number of prime factors////

Is this solution Helpfull? Yes (1) | No   

Prem Batra  (11 years ago)

prime factors are 5 (2,5,151,2339,3137)
total factors are 5*2*2*2*2=80

Is this solution Helpfull? Yes (1) | No (1)  

BRIJESH KUMAR GUPTA  (11 years ago)

it will be added simply because they are for prime factors

Is this solution Helpfull? Yes (1) | No   

aditya rathi  (11 years ago)

@parag-3137 is not 1049*3...
i think d answer shud b 40.

Is this solution Helpfull? Yes | No (1)  

PARAG KAMRA  (11 years ago)

sorry i did a silly mistake in prev sol'n
the factor of 1510 is 151*2*2,total factor are 3

the factor of 3137 is 3137 ,the total are 1 factors

the factor of 18712 is 2339*2*2*2 ,the total are 4 factors

so total number of factors is (3+1)(1+1)(4+1) is 4*2*5=40 prime factors(ans)

Is this solution Helpfull? Yes | No (4)  

snehil  (11 years ago)

1510=151*2*2?????

Is this solution Helpfull? Yes | No (1)  

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