Q: What are the prime factors of the number 145,352,410?

 A: 2, 5, 7, 23, 90281

Why are those the prime factors of the number 145,352,410?

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 145,352,410

145,352,410
Factor Arrows
272,676,205
Factor Arrows
514,535,241
Factor Arrows
72,076,463
Factor Arrows
2390,281

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, 7, 23, 90281

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 23 x 90,281 = 145,352,410

This can also be written as 21 x 51 x 71 x 231 x 90,2811 = 145,352,410

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


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