Q: What are the prime factors of the number 162,143,410?

 A: 2, 5, 11, 13, 71, 1597

Why are those the prime factors of the number 162,143,410?

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 162,143,410

162,143,410
Factor Arrows
281,071,705
Factor Arrows
516,214,341
Factor Arrows
111,474,031
Factor Arrows
13113,387
Factor Arrows
711,597

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, 5, 11, 13, 71, 1597

We can check our work by multiplying all of the prime factors together: 2 x 5 x 11 x 13 x 71 x 1,597 = 162,143,410

This can also be written as 21 x 51 x 111 x 131 x 711 x 1,5971 = 162,143,410

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


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