Oh, what a lovely question! Let's see, we can find the numbers divisible by 3 first, which are 33 numbers, and the numbers divisible by 7, which are 14 numbers. But wait, some numbers are divisible by both 3 and 7, so we must be careful not to count them twice. In the end, there are 47 numbers between 1 and 100 that are divisible by 3 or 7. Happy counting!
Infinitely many.
19 of them.
There are 95 numbers in the range of 1 to 1,000 that are divisible by seven but not by three.
5, 7, a bunch of numbers that are odd are not divisible by 3. numbers that are divisible by three can have all their numbers added together and come out with a number that is divisible by 3.
Eight of them.
Four and they are: 2, 3, 5 and 7
There are 14 numbers between 1 & 100 that are divisible by 7.
Two numbers: 126 and 147
By four prime numbers which are: 2 3 5 and 7
The smallest 3-digit multiple of 7 is 105 = 15*7 The largest 3-digit multiple of 7 is 994 = 142*7 So there are 142-14 = 128 3-digit multiples of 7, ie 128 3-digit numbers that are divisible by 7.
prime numbers between 0 -100 which are divisible by 7: 7