Q: What are the prime factors of the number 101,787,450?

 A: 2, 3, 5, 43, 367

Why are those the prime factors of the number 101,787,450?

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 101,787,450

101,787,450
Factor Arrows
250,893,725
Factor Arrows
316,964,575
Factor Arrows
53,392,915
Factor Arrows
5678,583
Factor Arrows
4315,781
Factor Arrows
43367

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, 43, 367

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 43 x 43 x 367 = 101,787,450

This can also be written as 21 x 31 x 52 x 432 x 3671 = 101,787,450

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


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