30
80 has 5 factor pairs.
Five
what is the number that has three digits less than 140 has7 factor the sum of the digits of the number is less than 9
Any factor of the number less than the number itself.
All of the composite numbers less than 100 have factor pairs.
Any number is a factor and a multiple of itself. Other factors are less than the number, other multiples are more. 5 is a factor of 10. 10 is a multiple of 5.
A number with more than one factor is normal, since all numbers except 0 and 1 have more than one factor. A number with more than two factors is composite.
Because 16 is a factor of 16, but it's not a factor of 42. So a number that's a factor of both 16 and 42 must be less than 16. (It can't be more than 16, because no factor of 16 can be bigger than 16.)
It's less than the first number.
No. In order for something to be a factor of a number, it has to be less than or equal to the number.
A number with more than one factor is normal, since all numbers except 0 and 1 have more than one factor. A number with more than two factors is composite.
1 has one factor.