The prime numbers between 20 and 30 are 23 and 29.
All of them except 23 and 29 which are prime numbers having only two factors
There are no integer palindromes between 1,000 and 9,000 that are divisible by 20.
There are 20 integer palindromes between 10,000 and 99,999 that are divisible by 25.
A common denominator of 20 and 30 is 600. This is NOT the least common denominator, though.
21,22,23,24,25,26,27,28,29
The prime numbers between 20 and 30 are 23 and 29.
LCM for 20 and 30 is 60.
All of them except 23 and 29 which are prime numbers having only two factors
There are no integer palindromes between 1,000 and 9,000 that are divisible by 20.
20
There are 20 integer palindromes between 10,000 and 99,999 that are divisible by 25.
A common denominator of 20 and 30 is 600. This is NOT the least common denominator, though.
There are 20 minutes between 9:40 am and 10 am.
Every integer from 20 to 99 qualifies; therefore there are 99 - 19 or 80 such numbers.
1, 2, 4, 5, 10, 20 1, 2, 3, 5, 6, 10, 15, 30
Infinitely many. For every integer, N, there is a multiple: 20*N.