20 of them.
How many numbers less than 700 are divisible by both 15 and 21?
Numbers up to 200 divisible by both 2 and 3 = numbers to 200 divisible by 2*3 = 6 which is int(200/6) = int(33.33) = 33
Divisible by both? 2 numbers... 45 and 90
There are 278 5-digit numbers less than 20,000 that are divisible by both four and nine.
The are six such numbers: 18,36,54,72, 90 and 108 .
The lists of numbers divisible by and not divisible by 600 are both infinite.
How many numbers less than 700 are divisible by both 15 and 21?
between 1 and 600 inclusive there are:300 numbers divisible by 2200 numbers divisible by 3100 numbers divisible by both 2 and 3400 numbers divisible by 2 or 3.
There are 75 whole numbers from 100 to 999 that are divisible by both three and four.
Numbers up to 200 divisible by both 2 and 3 = numbers to 200 divisible by 2*3 = 6 which is int(200/6) = int(33.33) = 33
33 divisible by 3. 14 divisible by 7. 4 divisible by both. Total: 43
Divisible by both? 2 numbers... 45 and 90
Four. 24 and its multiples.
Two numbers: 126 and 147
670
There are 278 5-digit numbers less than 20,000 that are divisible by both four and nine.
The are six such numbers: 18,36,54,72, 90 and 108 .