Q: What are the prime factors of the number 142,668,560?

 A: 2, 5, 101, 17657

Why are those the prime factors of the number 142,668,560?

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 142,668,560

142,668,560
Factor Arrows
271,334,280
Factor Arrows
235,667,140
Factor Arrows
217,833,570
Factor Arrows
28,916,785
Factor Arrows
51,783,357
Factor Arrows
10117,657

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, 101, 17657

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 101 x 17,657 = 142,668,560

This can also be written as 24 x 51 x 1011 x 17,6571 = 142,668,560

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


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