We know that all of the prime numbers in the product will be prime factors.kkadvent wrote:How to solve this type of questions quickly?
If N is product of all integers from 1 to 30, how may prime factors does N have?
So, the prime factors are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29 (any other factors will not be prime)
There are 10 in total
Cheers,
Brent
