There are an infinite supply of pairs of numbers that satisfy this question.
You can cut down the supply quite a bit if you restrict the answer to only whole numbers.
Then there are only four pairs that do the job:
1 x 49
-1 x -49
7 x 7
-7 x -7
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As an example, the square root of 49 is 7. It's this because the square root of a number is another number multiplied by itself(7X7=49).
7
49 multiplied by 4 is 196.
A number or expression that can be multiplied to get another number or expression is called a factor.
How about: 7*7 = 49 or 1*49 = 49