Others Maths Puzzle

Find the three digit no. In which each of the three digits is prime no.and the no.is divisible by each three digits

Read Solution (Total 2)

let the prime numbers be 3,5,7
now check for divisibility test and arrange it at ones place keep 5 (divisible by 5)
now sum of all digit is 15(multiple of 3)
place 7 at first place
the number is 735
12 years agoHelpfull: Yes(2) No(0)

Prime numbers b/w 0 and 10 are 2,3,5,7
2 + 3 + 5 = 10 => not divisible by 3

Number either consists of (2,3,7) or (3,5,7)

LCM of 3,5,7 = 105
=> number is 105 x 7 = 735
12 years agoHelpfull: Yes(0) No(1)

Others Other Question

A pencil cost rs .25,a pen cost rs 10 and a book cost rs25.how many each,one should buy so that the total no. of articles is 100and total amount 1000rs find the 3 digit number in hich ach of the thre digit is prim number and the numbr is divisible by ach of three digits.