Five
The answer is 105 because 3,5, and 7 are all prime factors and when you multiply the numbers together it comes out to be 10
The first prime after 20 is 23.
5 is a prime factor of 105,20 and 30
A prime number can be less than 20, but it is not a requirement that the number has to be under 20 to be considered prime. Here is a list of all the prime numbers under 20: 2, 3, 5, 7, 11, 13, 17, and 19 .
what number is not a prime factor
5 is the greatest prime factor of 20.
20 is not a prime number because 5 and 4 10 and 2 can also go into 20 not just 20 and 1
20 is a composite number
47 is the largest prime number between 20 and 50.
The largest prime under 20 is 19.
no. 20 is a prime number.
19 is prime.