Q: What are the prime factors of the number 56,454,370?

 A: 2, 5, 7, 109, 151

Why are those the prime factors of the number 56,454,370?

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 56,454,370

56,454,370
Factor Arrows
228,227,185
Factor Arrows
55,645,437
Factor Arrows
7806,491
Factor Arrows
7115,213
Factor Arrows
716,459
Factor Arrows
109151

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, 7, 109, 151

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 7 x 7 x 109 x 151 = 56,454,370

This can also be written as 21 x 51 x 73 x 1091 x 1511 = 56,454,370

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


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