Q: What are the prime factors of the number 153,451,410?

 A: 2, 3, 5, 7, 19, 38459

Why are those the prime factors of the number 153,451,410?

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 153,451,410

153,451,410
Factor Arrows
276,725,705
Factor Arrows
325,575,235
Factor Arrows
55,115,047
Factor Arrows
7730,721
Factor Arrows
1938,459

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, 19, 38459

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 19 x 38,459 = 153,451,410

This can also be written as 21 x 31 x 51 x 71 x 191 x 38,4591 = 153,451,410

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


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