Q: What are the prime factors of the number 157,075,710?

 A: 2, 3, 5, 11, 401, 1187

Why are those the prime factors of the number 157,075,710?

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 157,075,710

157,075,710
Factor Arrows
278,537,855
Factor Arrows
326,179,285
Factor Arrows
55,235,857
Factor Arrows
11475,987
Factor Arrows
4011,187

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:

2, 3, 5, 11, 401, 1187

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 11 x 401 x 1,187 = 157,075,710

This can also be written as 21 x 31 x 51 x 111 x 4011 x 1,1871 = 157,075,710

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


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