Q: What are the prime factors of the number 56,145,894?

 A: 2, 3, 7, 701, 1907

Why are those the prime factors of the number 56,145,894?

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 56,145,894

56,145,894
Factor Arrows
228,072,947
Factor Arrows
39,357,649
Factor Arrows
71,336,807
Factor Arrows
7011,907

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, 701, 1907

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 701 x 1,907 = 56,145,894

This can also be written as 21 x 31 x 71 x 7011 x 1,9071 = 56,145,894

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


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