None, if a number is divisible by 210 then it is not a prime number!
By four prime numbers which are: 2 3 5 and 7
the least number is 210 which is divisible by four different prime numbers.
The smallest number divisible by first four prime numbers is 2x3x5x7 = 210.
210
Because the four smallest prime numbers are 2, 3, 5, and 7. If you multiply these four together you get 210 (which makes 210 the smallest number divisible by four unique prime numbers).
The four smallest prime numbers are 2, 3, 5 and 7. Multiply them together. You'll get 210.
210/2 = 105 210/3 = 70 210/5 = 42 210/7 = 30
2 * 3 * 5 * 7 = 210 is the smallest one divisible by four unique prime numbers. However, there are an infinite number of them, since there are an infinite number of primes.
2 x 3 x 5 x 7 = 210
Most of the numbers you encounter will be divisible by 2, 3, 5 or 7. Start there. Let's try 210. 210 (Since it's even, it's divisible by two.) 105,2 (105 is divisible by three) 35,3,2 (35 is divisible by 5.) 7,5,3,2 (7 is prime and can't be reduced further.) 2 x 3 x 5 x 7 = 210
The prime factors of 210 are 2x3x5x7.