Q: What are the prime factors of the number 69,741,840?

 A: 2, 3, 5, 7, 41513

Why are those the prime factors of the number 69,741,840?

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 69,741,840

69,741,840
Factor Arrows
234,870,920
Factor Arrows
217,435,460
Factor Arrows
28,717,730
Factor Arrows
24,358,865
Factor Arrows
31,452,955
Factor Arrows
5290,591
Factor Arrows
741,513

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, 7, 41513

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 7 x 41,513 = 69,741,840

This can also be written as 24 x 31 x 51 x 71 x 41,5131 = 69,741,840

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


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