Q: What are the prime factors of the number 145,335,600?

 A: 2, 3, 5, 13457

Why are those the prime factors of the number 145,335,600?

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 145,335,600

145,335,600
Factor Arrows
272,667,800
Factor Arrows
236,333,900
Factor Arrows
218,166,950
Factor Arrows
29,083,475
Factor Arrows
33,027,825
Factor Arrows
31,009,275
Factor Arrows
3336,425
Factor Arrows
567,285
Factor Arrows
513,457

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, 13457

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 5 x 13,457 = 145,335,600

This can also be written as 24 x 33 x 52 x 13,4571 = 145,335,600

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


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