Q: What are the prime factors of the number 351,141,056?

 A: 2, 7, 41, 2731

Why are those the prime factors of the number 351,141,056?

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 351,141,056

351,141,056
Factor Arrows
2175,570,528
Factor Arrows
287,785,264
Factor Arrows
243,892,632
Factor Arrows
221,946,316
Factor Arrows
210,973,158
Factor Arrows
25,486,579
Factor Arrows
7783,797
Factor Arrows
7111,971
Factor Arrows
412,731

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, 41, 2731

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 7 x 7 x 41 x 2,731 = 351,141,056

This can also be written as 26 x 72 x 411 x 2,7311 = 351,141,056

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


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