Q: What are the prime factors of the number 162,650,208?

 A: 2, 3, 7, 71, 487

Why are those the prime factors of the number 162,650,208?

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 162,650,208

162,650,208
Factor Arrows
281,325,104
Factor Arrows
240,662,552
Factor Arrows
220,331,276
Factor Arrows
210,165,638
Factor Arrows
25,082,819
Factor Arrows
31,694,273
Factor Arrows
7242,039
Factor Arrows
734,577
Factor Arrows
71487

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, 7, 71, 487

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 7 x 71 x 487 = 162,650,208

This can also be written as 25 x 31 x 72 x 711 x 4871 = 162,650,208

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


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