The number of numbers which are multiples of both 3 and 5 in the first 100 natural numbers is
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I think it's it is 15
is helps you
bye
chiranth34:
Thanks for your answer.But its wrong
Answered by
7
Answer:
The number of numbers which are multiples of both 3 and 5 in the first 100 natural numbers is 6
Step-by-step explanation:
Number multiplied by 3 & 5 both
so we need to find least common multiplier of 3 & 5
LCM = 3 * 5 = 15 ( as 3 & 5 do not have any common factor)
Numbers which are multiples of 15 will be multiples of 3 & 5 Both
15 , 30 , 45 , 60 , 75 , 90
= 6 numbers
The number of numbers which are multiples of both 3 and 5 in the first 100 natural numbers is 6
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