Q: What are the prime factors of the number 144,651,712?

 A: 2, 19, 47, 2531

Why are those the prime factors of the number 144,651,712?

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 144,651,712

144,651,712
Factor Arrows
272,325,856
Factor Arrows
236,162,928
Factor Arrows
218,081,464
Factor Arrows
29,040,732
Factor Arrows
24,520,366
Factor Arrows
22,260,183
Factor Arrows
19118,957
Factor Arrows
472,531

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, 19, 47, 2531

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 19 x 47 x 2,531 = 144,651,712

This can also be written as 26 x 191 x 471 x 2,5311 = 144,651,712

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


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