18 has more factors than 19 and 25.
which of the numbers 19 21 23 and 25 has the most factors
21 has the most factors of the given numbers.
Out of that group, 21 has the most factors.
The prime numbers: 19, 23, 29 and 61.
21 does.
21 has the most factors of the four numbers. 19 has 2 factors (1 and 19) 21 has 4 factors (1, 3, 7, 21) 23 has 2 factors (1, 23) 25 has 3 factors (1, 5, 25)
The common denominator is usually the Lowest (or Least) Common Multiple of the numbers involved. Where two numbers have no common factors then the LCM is simply the product of those numbers. As 19 is a prime number and has no factors in common with 18 then the common denominator is 18 x 19 = 342.
The prime factors are 342 are 2, 3, 3, and 19. Thus the numbers 342 is divisible by are 1, 2, 3, 6, 9, 18, 19, 36, 38, 57, and 342.
The factors of 57 are 1, 3, 19, and 57The factors of 18 are 1, 2, 3, 6, 9, and 18
Themselves and one because 19 and 37 are prime numbers
1, 2, 3, 6, 9, 18 1, 19
Its factors are: 1 2 4 19 38 and 76 Prime numbers: 2 and 19 Composite numbers: 4 38 and 76 Note: 1 is neither a prime or composite number