Q: What are the prime factors of the number 64,741,838?

 A: 2, 7, 281, 2351

Why are those the prime factors of the number 64,741,838?

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 64,741,838

64,741,838
Factor Arrows
232,370,919
Factor Arrows
74,624,417
Factor Arrows
7660,631
Factor Arrows
2812,351

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, 7, 281, 2351

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 281 x 2,351 = 64,741,838

This can also be written as 21 x 72 x 2811 x 2,3511 = 64,741,838

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


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