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In the first 100 natural numbers, how many can be divisible by 2 or 3 or 5 In the first 100 natural numbers, how many are divisible by 2, 3 and 5
Number of numbers divisible by 2: 100 △ 2 = 50
The number of numbers divisible by 3: 100 △ 3 ≈ 33
Number of numbers divisible by 5: 100 △ 5 = 20
The number divisible by 2, 3 and 5 is actually a multiple of 2 × 3 × 5 = 30
The numbers that can be divided by 30 are: 100 △ 30 ≈ 3 (pieces) from 0 to 100
30, 60, 90
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