Q: What are the prime factors of the number 158,025,210?

 A: 2, 3, 5, 7, 157, 4793

Why are those the prime factors of the number 158,025,210?

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 158,025,210

158,025,210
Factor Arrows
279,012,605
Factor Arrows
326,337,535
Factor Arrows
55,267,507
Factor Arrows
7752,501
Factor Arrows
1574,793

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, 7, 157, 4793

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 157 x 4,793 = 158,025,210

This can also be written as 21 x 31 x 51 x 71 x 1571 x 4,7931 = 158,025,210

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


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