Q: What are the prime factors of the number 35,140,224?

 A: 2, 3, 7, 17, 769

Why are those the prime factors of the number 35,140,224?

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 35,140,224

35,140,224
Factor Arrows
217,570,112
Factor Arrows
28,785,056
Factor Arrows
24,392,528
Factor Arrows
22,196,264
Factor Arrows
21,098,132
Factor Arrows
2549,066
Factor Arrows
2274,533
Factor Arrows
391,511
Factor Arrows
713,073
Factor Arrows
17769

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, 7, 17, 769

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7 x 17 x 769 = 35,140,224

This can also be written as 27 x 31 x 71 x 171 x 7691 = 35,140,224

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


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