Q: What are the two digit common multiples of 2 3 and 4?

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lcm(2, 3, 5) = 30 → 2 digit common multiples are 30, 60, 90.

Use some method which you probably already learned, to find the least common multiple. All the other common multiples are multiples of this least common multiple, so you can multiply the least common multiple by 2, by 3, by 4, etc., to get additional common multiples.

Multiple of both 2 and 3 <=> multiple of 6 So require 2 digit multiples of 6. 2*6 = 12 and 16*6=96 So the answer is 16-2+1 = 15

This cannot be determined because the common multiples of any two or more numbers are infinite.

Two and three are relatively prime, or coprime. That means that they have no smaller number, or factor, in common. So, the multiples of both numbers are the multiples of the product of the two, or the multiples of six.

Related questions

30, 60 and 90.

lcm(2, 3, 5) = 30 → 2 digit common multiples are 30, 60, 90.

Use some method which you probably already learned, to find the least common multiple. All the other common multiples are multiples of this least common multiple, so you can multiply the least common multiple by 2, by 3, by 4, etc., to get additional common multiples.

All of the odd numbers between 11 and 99 inclusive are two digit numbers that are not multiples of 2. There are 45 of them.

60 numbers

It's 52

the first two common multiples of 15,27 are 135,270

The first two common multiples of 235 is 5 and 47.

There are none.

45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers

2

The first 2 multiples are 42,84.