A five-digit number is chosen at random from all possible five-digit numbers. Find the probability that the number is NOT divisible by every element of ( 1,2,3,4,5)

Guest Feb 10, 2022

#1**+1 **

What are the prime factors here

2,3,5, but we need another 2 to make 4

2*3*5*2=60

10000 / 60 =166 and a bit

so the smallest that is a multiple of 60 is 60*167

99999/60=1666 and a bit

so the biggest that is a multiple of 60 is 60*1666

1666-167+1 = 1500

There are 1500 numbrs that are divisable by all of those numbers.

Now, you tell me, what do you do next?

**Please other answerers, let the asker answer this.**

Melody Feb 10, 2022