Q: What are the prime factors of the number 351,748,452?

 A: 2, 3, 11, 157, 1543

Why are those the prime factors of the number 351,748,452?

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 351,748,452

351,748,452
Factor Arrows
2175,874,226
Factor Arrows
287,937,113
Factor Arrows
329,312,371
Factor Arrows
112,664,761
Factor Arrows
11242,251
Factor Arrows
1571,543

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, 11, 157, 1543

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 11 x 157 x 1,543 = 351,748,452

This can also be written as 22 x 31 x 112 x 1571 x 1,5431 = 351,748,452

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


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