Q: What are the prime factors of the number 145,125,432?

 A: 2, 3, 74653

Why are those the prime factors of the number 145,125,432?

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 145,125,432

145,125,432
Factor Arrows
272,562,716
Factor Arrows
236,281,358
Factor Arrows
218,140,679
Factor Arrows
36,046,893
Factor Arrows
32,015,631
Factor Arrows
3671,877
Factor Arrows
3223,959
Factor Arrows
374,653

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, 74653

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 74,653 = 145,125,432

This can also be written as 23 x 35 x 74,6531 = 145,125,432

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


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