They are: 5, 10 and 20
LCM is 40, which is the multiple of the highest power of prime factors in the given numbers (23 x 5).
Factors: 1, 5 Multiples: 5, 10, 15 and so on.
Numbers which are the factors of thirty and multiples of five are 5, 10, 15 and 30.
20, 28, 32 36 & 40 !
6 of them.
no 4,5 and 8 are factors of 40
All multiples of 120 are multiples of both 40 and 24, because 120 contains all the factors of 40 (23*5) and 24 (23*3). Some examples of multiples are 120, 240, 360, and 600.
The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 Those which are multiples of 4 are: 4, 8, 16, 20, 40, 80
There are infinetly many numbers which have 2 and 5 as their factors. Some examples are 10, 20, 30, 40, etc. 2 and 5 both are prime numbers and their common multiples are the multiples of 2 x 5 = 10. So all the multiples of 10 have 2 and 5 as their factors. However if consider 2 and 5 as the only two proper factors, then the required number is 10.
40 and all its multiples...
An easy way to figure out many of them would to be to multiply 8x5(40). Now, any numbers that are multiples of 40, such as 40,80,120,160, would all have the factors of 8 and 5.
Multiples of 5 and 10 are called common multiples.
No number has the multiples of 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, but the number 80 (and all its multiples: 160, 240, 320, 400, ...) has them all as FACTORS.
LCM is 40, which is the multiple of the highest power of prime factors in the given numbers (23 x 5).
5, 10, and 20 are all multiples of 5 and factors of 20.
The factors of 4 are 1, 2 and 4. The factors of 5 are 1 and 5. The factors of 10 are 1, 2, 5 and 10. In case you were asking about the first three multiples of 4, 5 and 10, those are 20, 40 and 60.
The factors of 5 are 1 and 5. Neither is a multiple of 8.