Divisors and multiples of a number

Look at for the divisors of the numbers $35, 22, 10$ and $42$.

$$35 \div 1=35 \\ 35 \div 5=7 \\ 35 \div 7=5 \\ 35 \div 35=1$$

$$22 \div 1=22 \\ 22 \div 2=11 \\ 22 \div 11=2 \\ 22 \div 22=1$$

$$10 \div 1=10 \\ 10 \div 2=5 \\ 10 \div 5=2 \\ 10 \div 10=1$$

$$42 \div 1=42 \\ 42 \div 2=24 \\ 42 \div 3=14 \\ 42 \div 6=7 \\ 42 \div 7=6 \\ 42 \div 14=3 \\ 42 \div 24=2 \\ 42 \div 42=1$$

The divisors of $35$ are the following numbers: $1, 4, 7$ and $35$.

The divisors of $22$ are the following numbers: $1, 2, 11, 22$.

The divisors of $10$ are the following numbers: $1, 2, 5, 10$.

The divisors of $42$ are the following numbers: $1, 2, 3, 6, 7, 14, 24$ and $42$.

Look for three multiples of the number $3$, four multiples of the number $5$ and three multiples of $3$ and $2$ at the same time.

$$3\times2=6 \ \ 3\times3=9 \ \ 3\times4=12$$

$$5\times2=10 \ \ 5\times3=15 \ \ 5\times4=20 \ \ 5\times5=25$$

$$3\times2=6 \ \ 3\times2\times2=12 \ \ 3\times2\times3=18$$

The numbers $6, 9$ and $12$ are multiples of the number $3$.

The numbers $10, 15, 20$ and $25$ are multiples of $5$.

The numbers $6, 12$ and $18$ are multiples common of $2$ and $3$.