Q: What are the prime factors of the number 56,177,172?

 A: 2, 3, 149, 3491

Why are those the prime factors of the number 56,177,172?

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 56,177,172

56,177,172
Factor Arrows
228,088,586
Factor Arrows
214,044,293
Factor Arrows
34,681,431
Factor Arrows
31,560,477
Factor Arrows
3520,159
Factor Arrows
1493,491

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, 149, 3491

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 149 x 3,491 = 56,177,172

This can also be written as 22 x 33 x 1491 x 3,4911 = 56,177,172

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


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