Q: What are the prime factors of the number 86,451,152?

 A: 2, 61, 101, 877

Why are those the prime factors of the number 86,451,152?

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 86,451,152

86,451,152
Factor Arrows
243,225,576
Factor Arrows
221,612,788
Factor Arrows
210,806,394
Factor Arrows
25,403,197
Factor Arrows
6188,577
Factor Arrows
101877

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, 61, 101, 877

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 61 x 101 x 877 = 86,451,152

This can also be written as 24 x 611 x 1011 x 8771 = 86,451,152

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


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