Q: What are the prime factors of the number 53,168,973?

 A: 3, 11, 13, 19, 593

Why are those the prime factors of the number 53,168,973?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 53,168,973

53,168,973
Factor Arrows
317,722,991
Factor Arrows
111,611,181
Factor Arrows
11146,471
Factor Arrows
1311,267
Factor Arrows
19593

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

3, 11, 13, 19, 593

We can check our work by multiplying all of the prime factors together: 3 x 11 x 11 x 13 x 19 x 593 = 53,168,973

This can also be written as 31 x 112 x 131 x 191 x 5931 = 53,168,973

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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