Q: What are the prime factors of the number 70,375,040?

 A: 2, 5, 109961

Why are those the prime factors of the number 70,375,040?

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 70,375,040

70,375,040
Factor Arrows
235,187,520
Factor Arrows
217,593,760
Factor Arrows
28,796,880
Factor Arrows
24,398,440
Factor Arrows
22,199,220
Factor Arrows
21,099,610
Factor Arrows
2549,805
Factor Arrows
5109,961

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, 109961

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 5 x 109,961 = 70,375,040

This can also be written as 27 x 51 x 109,9611 = 70,375,040

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


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