Q: What are the prime factors of the number 140,073,750?

 A: 2, 3, 5, 12451

Why are those the prime factors of the number 140,073,750?

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 140,073,750

140,073,750
Factor Arrows
270,036,875
Factor Arrows
323,345,625
Factor Arrows
37,781,875
Factor Arrows
51,556,375
Factor Arrows
5311,275
Factor Arrows
562,255
Factor Arrows
512,451

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, 12451

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 5 x 5 x 12,451 = 140,073,750

This can also be written as 21 x 32 x 54 x 12,4511 = 140,073,750

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


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